https://per-storemyr.net/2025/05/12/small-scale-lime-burning-for-conservation-in-south-norway/https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand4.jpglimeburning-tvedestrand4https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand3.jpglimeburning-tvedestrand3https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand2.jpglimeburning-tvedestrand2https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand1.jpglimeburning-tvedestrand1Burning lime through the nighthttps://per-storemyr.net/wp-content/uploads/2025/05/lime-burning-tvedestrand-yield.pnglime-burning-tvedestrand-yieldhttps://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand11.jpglimeburning-tvedestrand11https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand10.jpglimeburning-tvedestrand10https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand9.jpglimeburning-tvedestrand9https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand7.jpglimeburning-tvedestrand7https://per-storemyr.net/wp-content/uploads/2025/05/limeburning-tvedestrand6.jpglimeburning-tvedestrand62026-04-02T11:38:33+00:00monthlyhttps://per-storemyr.net/publications/https://per-storemyr.net/wp-content/uploads/2010/07/storemyr-conference-stavanger-credit-schjelderup-gram.jpgstoremyr-conference-stavanger-credit-schjelderup-gram2026-04-02T11:19:10+00:00weekly0.6https://per-storemyr.net/2026/02/23/forsmak-pa-tafoni-sesongen-2026/https://per-storemyr.net/wp-content/uploads/2026/02/hove-markopp-spornes.jpghove-markopp-spornesRullesteinsstranda langs Raet, ut mot Skagerrak mellom Markopp og Spornes, yttersida av Hove, Tromøy. Foto PShttps://per-storemyr.net/wp-content/uploads/2026/02/hove-markopp-tafoni-1.jpghove-markopp-tafoni-1Tafoni i amfibolitt ved Markopp på yttersiden av Hove, Tromøy. Foto PS2026-04-02T11:12:08+00:00monthlyhttps://per-storemyr.net/2026/02/26/the-joy-of-well-preserved-medieval-soapstone-sculpture/https://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-kongehode-header-e28093-kopi.jpgmikaelskapellet-gotisk-kongehode-header – Kopihttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-kongehode1.jpgmikaelskapellet-gotisk-kongehode1The Janus-faced stone of the king: Excellently preserved, protruding head regularly washed by rain, and retracted mouldings in the same stone piece protected from rain on which salt accumulates and leads to weathering. It Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-bispehode.jpgmikaelskapellet-gotisk-bispehodeThe well-preserved Gothic bishop. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-bispehode1.jpgmikaelskapellet-gotisk-bispehode1The bishop’s scar across the eye: A carbonate vein, probably dolomite, that has been slightly dissolved. The brown colour is simply rust from small quantities of iron in the dolomite. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-nordinngangen.jpgmikaelskapellet-nordinngangenThe Romanesque North Porch of Nidaros Cathedral, with St. Michael’s chapel above. The head sculptures are associated with the opening featuring a pointed, Gothic arch. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-kongehode.jpgmikaelskapellet-gotisk-kongehodeWell-preserved Gothic sculpture of a king at Nidaros Cathedral. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/02/mikaelskapellet-gotisk-mosesfigur.jpgmikaelskapellet-gotisk-mosesfigurMoses with horns. Hair and beard in fabulous condition after nearly 800 years of exposure to the elements. Photo by PS2026-02-27T01:00:13+00:00monthlyhttps://per-storemyr.net/reports/https://per-storemyr.net/wp-content/uploads/2025/01/cd-nidaros-conservation.jpgcd-nidaros-conservationhttps://per-storemyr.net/wp-content/uploads/2023/05/klevfos-fagrapport-saltforvitring.jpgklevfos-fagrapport-saltforvitring2026-01-31T02:27:14+00:00weekly0.6https://per-storemyr.net/2023/06/08/mangfold-i-kalk-na-ogsa-kalkbrenning-pa-sorlandet/https://per-storemyr.net/wp-content/uploads/2023/06/kalkbrenning-lia-uttak.jpgkalkbrenning-lia-uttakDet er skikkelig varmt når Anders Oppegaard fjerner topplokket fra kalkovnen og kan se ned i ei ildmørje av glødende, brent kalkhttps://per-storemyr.net/wp-content/uploads/2023/06/brent-oynaheiakalk.jpgbrent-øynaheiakalkØynaheiamarmor ble helt brun etter brenning!https://per-storemyr.net/wp-content/uploads/2023/06/brent-porsgrunnmarmor1.jpgbrent-porsgrunnmarmor1Brent Porsgrunnmarmor med svært tydelige fossiler og slagg som har "rent ut" fra de urene lagene med leire/skiferhttps://per-storemyr.net/wp-content/uploads/2023/06/brent-porsgrunnmarmor.jpgbrent-porsgrunnmarmorhttps://per-storemyr.net/wp-content/uploads/2023/06/brent-brevikkalk.jpgbrent-brevikkalkGanske hvit, ferdig brent Brevikkalk, med en liten, grå "kjerne" som viser at den her ikke er helt gjennombrenthttps://per-storemyr.net/wp-content/uploads/2023/06/bjorntvedt.jpgbjørntvedtPorsgrunnmarmor i bruddet på Bjørntvedt. Det lille bildet viser den fossilrike revkalksteinenhttps://per-storemyr.net/wp-content/uploads/2023/06/bjorvatn-kalkovn.jpgbjorvatn-kalkovnI den gamle kalkovnen på Bjorvatn ved Øynaheia ble det brent svært grovkornet marmor, som det lille bildet viserhttps://per-storemyr.net/wp-content/uploads/2023/06/brevikkalk.jpgbrevikkalkBrevikkalk fra deponi langt nede i gruvene til Brevik sementfabrikk. Det lille bildet viser den ganske homogene kalkenhttps://per-storemyr.net/wp-content/uploads/2023/06/kalkovnen-hvittet2.jpgkalkovnen-hvittet2Hvitting av kalkovnen med de brente kalkene. Brent Porsgrunnmarmor og Brevikkalk blir ganske hvite, mens brent Øynaheiamarmor har fått en tydelig beige/gyllen tone. Foto: Anders Oppegaardhttps://per-storemyr.net/wp-content/uploads/2023/06/kalkovnen-hvittet.jpgkalkovnen-hvittet2026-01-29T19:25:25+00:00monthlyhttps://per-storemyr.net/2025/03/03/grunnmuren-til-fastings-minde-i-bergen-etter-5-ar-star-tradisjonskalken-fortsatt-godt/https://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-harriss-mars-2025.jpgfastings-minde-hårriss-mars-2025Hårriss i muren skyldes pågående, ørsmå setninger i bygget. Foto: Per Storemyr, mars 2025https://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-avflaking-mars-2025.jpgfastings-minde-avflaking-mars-2025Den største avflakingsskaden på hele muren. Ikke verst etter 5 år. Foto: Per Storemyr, mars 2025https://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-pussstruktur-mars-2025.jpgfastings-minde-pussstruktur-mars-2025Muren har en ganske grov tekstur. Pussen fra 2020 er ikke særlig tykk. Foto: Per Storemyr, mars 2025https://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-grunnmuren-mars-2025.jpgfastings-minde-grunnmuren-mars-2025Vannbordet over muren gir litt beskyttelse, men ved nedbør og vind er den meget sterkt eksponert. Foto: Per Storemyr, mars 2025https://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-rapport-forsidebilde.jpgfastings-minde-rapport-forsidebildehttps://per-storemyr.net/wp-content/uploads/2025/03/fastings-minde-mars-2025.jpgfastings-minde-mars-2025Fastings Minde med den store grunnmuren som ble restaurert i 2020. Foto: Per Storemyr, mars 2025.2026-01-11T14:22:17+00:00monthlyhttps://per-storemyr.net/2025/12/28/soapstone-in-the-far-south-of-norway-i-the-sparsas-iron-age-quarry/https://per-storemyr.net/wp-content/uploads/2025/12/sparsas4.jpgsparsås4Quarry 1 seen from above. Note the moss-filled depressions, indicative of deeper quarrying. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas-1-path-spoil.jpgsparsås-1-path-spoilIndistinct path leading into quarry 1 between spoil heaps. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas2-2.jpgsparsås2-2Vessel blank attached to the bedrock. Hollowing has begun. Quarry 2. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas-2-1.jpgsparsås-2-1Vessel blanks attached to the bedrock in quarry 2. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas2.jpgsparsås2Naturally detached quarry face with vessel blanks still attached. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas-quarry-face.jpgsparsås-quarry-faceThe main quarry face in quarry 1. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/elevation-profile-sparsas.pngelevation-profile-sparsåsElevation profile a-a' (see map above). From hoydedata.nohttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas-lidar.jpgsparsås-lidarLidar elevation model of the two Sparsås quarries. From hoydedata.nohttps://per-storemyr.net/wp-content/uploads/2025/12/sparsas6.jpgsparsås6Typical appearance of the dark Sparsås soapstone. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/12/geology-sparsas.jpggeology-sparsåsLocal geology by the Sparsås quarry site. Map based on NGU's geological maps2026-01-06T12:32:31+00:00monthlyhttps://per-storemyr.net/2026/01/06/soapstone-in-the-far-south-of-norway-ii-the-ostre-vimme-multiperiod-quarry-with-very-soft-soapstone/https://per-storemyr.net/wp-content/uploads/2026/01/nordland-soapstone-marble.jpgnordland-soapstone-marbleImpressions from the Nordland quarry. Clockwise from top left: 1. Spoil heaps from talc production. 2. Spot with very talc rich rock. Note the greyish white stone and absence of rust-coloured spots. 3. Calcitic marble with serpentine. 4. Layered talc-rich rocks. Photos by PS (1998). See also Storemyr (2000)https://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-soapstone.jpgøstre-vimme-soapstoneSoapstone in the Østre Vimme quarry. Tlc = talc, Mca = mica, Mgs/Dol= magnesite/dolomite. Note the brown rust colour associated with the carbonates. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-tremolite-rock.jpgøstre-vimme-tremolite-rockTalc-tremolite rock in the Østre Vimme quarry. Tlc = talc, Mca = mica, Mgs/Dol= magnesite/dolomite, Qz=quartz. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-c33430.jpgøstre-vimme-C33430Fragment of an unfinished vessel carved in a less pure variety of soapstone from Østre Vimme. The dark minerals are mica and some tremolite. Photo by Kulturhistorisk Museum, UiO, in digitaltmuseum.nohttps://per-storemyr.net/wp-content/uploads/2026/01/geology-ostre-vimme.jpggeology-østre-vimmeSimplified geological map from the Geological Survey of Norway Rock unit characterization partly from Moree & Nijland (1996)https://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-quarry-floor.jpgøstre-vimme-quarry-floorThe quarry floor below the big blocks that at some time detached from the undermined quarry face. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-quarry-vessel-mark.jpgøstre-vimme-quarry-vessel-markMark of vessel extraction on the quarry face by the pons in the eastern part. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/01/ostre-vimme-quarry-from-east.jpgøstre-vimme-quarry-from-eastThe Østre Vimme quarry as seen from the pond in the eastern part. Photo by PShttps://per-storemyr.net/wp-content/uploads/2026/01/elevation-profile-ostre-vimme.pngelevation-profile-østre-vimmeElevation profile a-a’ in map above. From hoydedata.nohttps://per-storemyr.net/wp-content/uploads/2026/01/austre-vimme-kart-eng.jpgaustre-vimme-kart-engSketch map of the quarry and its near surroundings, by PS and Morten Kutschera 20242026-01-06T12:16:40+00:00monthlyhttps://per-storemyr.net/2025/11/25/bioerosion-of-shells-on-the-beach-and-in-old-norwegian-lime-mortars/https://per-storemyr.net/wp-content/uploads/2025/11/shellsand-korshavn-flosta.jpgshellsand-korshavn-flostaShell sand is characterized by diversity of shell types. From Korshavn at Flosta, South Norway. Photo by PShttps://per-storemyr.net/wp-content/uploads/2025/11/shipworm-driftwood-tromoy.jpgshipworm-driftwood-tromøyShipworm borings in driftwood at the outer coast of Tromøy, South Norway. Photo by PS https://per-storemyr.net/wp-content/uploads/2025/11/sh2-sea-urchin.jpgSH2-sea-urchinSea urchin spine in lime mortar. Section. Microphoto (XPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/sh4-shell-barnacle-micritization.jpgSH4-shell-barnacle-micritizationPartially micritized fragments of barnacle (top left) and shell (middle) surrounded by a thin layer of lime binder. Black is pores. Sakshaug old church. Microphoto (XPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/mo1-skellfragment-boring-small.jpgMO1-skellfragment-boring-smallVery fine borings from the edge of a shell fragment. Moster old church. Microphoto (PPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/mo1-microborings-or-crazing.jpgMO1-microborings-or-crazingLarger borings in the dark part of the shell and very fines ones in the light. The edge (top) is micritic with borings. Moster old church. Microphoto (PPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/sh2-skjell-boring-xpl.jpgSH2-skjell-boring-xplLarger borings in a shell fragment. Sakshaug old church. Microphoto (XPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/sh2-skjell-boring1.jpgSH2-skjell-boring1Crisscrossing, very fine borings in a shell fragment. Sakshaug old church. Microphoto (PPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/mo1-oversikt.jpgMO1-oversiktLarger borings in dark, micritic part of shell fragment (middle). Moster old church. Microphoto (PPL) by PShttps://per-storemyr.net/wp-content/uploads/2025/11/mo1-moster-gamle-kirke-med-skjell.jpgMO1-moster-gamle-kirke-med-skjellMicrobored and micritized shell that seamlessly blends into the binder of the lime mortar. Moster old church. Microphoto (PPL) by PS2025-12-28T17:17:10+00:00monthlyhttps://per-storemyr.net/2025/12/01/tafoni-forvitring-i-larvikitt-pa-rakke-ved-stavern/https://per-storemyr.net/wp-content/uploads/2025/12/grusforvitring-kjose-ngt-laag-1945.jpggrusforvitring-kjose-ngt-laag-1945Sterk grusforvitring i larvikitt i Kjose. Bilde fra Lågs artikkel i NGT 1945.https://per-storemyr.net/wp-content/uploads/2025/12/rakke-tafoni-2.jpgrakke-tafoni-2Tafoni på Rakke - knyttet til mørkere lag i larvikitt. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/12/rakke-tafoni-1.jpgrakke-tafoni-1Her kan en ane at tafonihullene stort sett befinner seg i de mørkeste lagene. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/12/rakke-tafoni-5.jpgrakke-tafoni-5Nærbilde av de små tafonihullene. De lysere lagene er kjennetegnet av store, lyse felltspatkrystaller. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/12/rakke-larvikitt.jpgrakke-larvikittSvaberg på Rakke, med Skagerrak rett i mot. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/12/rakke-magmatisk-lagning-larvikitt.jpgrakke-magmatisk-lagning-larvikittMagmatisk lagning i larvikitt på Rakke, her uten mye tafoni, men med desto mer forvitring langs de mørkere lagene. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/12/rakke-larvikitt-grusforvitring.jpgrakke-larvikitt-grusforvitringGrusforvitring i larvikitt på Rakke. Det er det nærmeste berget på bildet som har fått overflaten pulverisert. Foto: PS 2025-12-18T15:48:40+00:00monthlyhttps://per-storemyr.net/about/https://per-storemyr.net/wp-content/uploads/2018/01/per-storemyr1.jpgper-storemyr12025-11-24T23:42:05+00:00weekly0.6https://per-storemyr.net/2025/11/09/madam-jorgensens-230-ar-gamle-feltspatgruve-i-naresto/https://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve2.jpgNarestø-feltspatgruve2https://per-storemyr.net/wp-content/uploads/2025/11/naresto-flyfoto-danielsen-1900-1950.jpgNarestø-flyfoto-danielsen-1900-1950Gruva ses godt som en hvit flekk på flybilde fra første halvdel av 1900-tallet, før større utbygging tok til i Narestø. Flosta kirke er rett overfor gruva. Foto: Daneilsen, fra nb.nohttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-geologisk-kart.jpgnarestø-geologisk-kartGeologien rundt Narestø-gruva, merket som en rød trekant. Brunt er gabbro, beige er gneis. Fra ngu.nohttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve-norgeibilder-1989.jpgnarestø-feltspatgruve-norgeibilder-1989Gruveområdet fra flybilde i 1989. En ser at deler av gruva har kollapset til en stor og en mindre ur. Fra norgeibilder.nohttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatbrudd-hoydedata.jpgNarestø-feltspatbrudd-hoydedataGruveområdet ses godt på moderne Lidar-kart. Fra hoydedata.nohttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve7.jpgNarestø-feltspatgruve7Rester av dagbruddsdrift i gruva. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve6.jpgNarestø-feltspatgruve6Et av sporene fra driften av gruva, trolig for å heise opp stein, eller lense? Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve5.jpgNarestø-feltspatgruve5Sjakt nedover langs hengsiden av gruva. Foto PShttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve4.jpgNarestø-feltspatgruve4Den største gruvegangen som kan ses i dag. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/11/naresto-feltspatgruve3.jpgNarestø-feltspatgruve3Liten gruveåpning der det er flere spor etter kruttsprengning. Foto: PS2025-11-09T00:37:56+00:00monthlyhttps://per-storemyr.net/2019/09/06/selja-kloster-hvor-kom-middelalderens-kalkmortel-fra/https://per-storemyr.net/wp-content/uploads/2019/09/vestlandet-marmorforekomster.jpgvestlandet-marmorforekomsterKjente marmorforekomster på strekningen mellom Sunnhordland og Møre. Kilde: NGUhttps://per-storemyr.net/wp-content/uploads/2019/09/st-jetmund-c3a5heim.jpgst-jetmund-åheimSt. Jetmund kirke i Åheim. I det ytre er spesielt vestveggen bygd med marmor. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/09/skjellkalk-kinn-kirke.jpgskjellkalk-kinn-kirkeFor å bygge Kinn kirke brant man skjell til bruk i mørtel i middelalderen. Her fra en fuge der mørtelen har skjellsand i tilslaget. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/09/selja-unburnt-lime-marble-masonry2.jpgselja-unburnt-lime-marble-masonry2Makrofoto av en ubrent marmorbit fra den romanske delen av Albanuskirken. Marmoren er finkornet, kornstørrelsen er stort sett mindre enn 1 mm (mm-skala i forkant). Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/09/selja-unburnt-lime-marble-masonry1.jpgselja-unburnt-lime-marble-masonry1Makrofoto av en ubrent marmorbit fra Sunnivakirken. Vi ser at marmoren er finkornet, med kornstørrelser på stort sett mindre enn 1 mm (mm-skala i forkant). Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/09/selja-unburnt-lime-marble-masonry.jpgselja-unburnt-lime-marble-masonryhttps://per-storemyr.net/wp-content/uploads/2019/09/selja-sildagapet-stadhavet.jpgselja-sildagapet-stadhavetForsidebilde: Sildagapet og Stadhavet ved Selja er sjelden så rolig. Men mørke skyer truer. Turte man å frakte farlig brentkalk over Norges farligste havstrekning i middelalderen? Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2019/09/selja-mc3b8rtel-mikrofoto-seir2.jpgselja-mørtel-mikrofoto-seir2Mikroskopibilde av mørtelen i den romanske delen av Albanuskirken på Selja, 1100-tallet. Vi legger merke til kalkklumper (K), korn av ubrent marmor (Ca) og mye rekrystallisert kalk i sprekker (merket med piler). Foto: Torben Seirhttps://per-storemyr.net/wp-content/uploads/2019/09/selja-mc3b8rtel-mikrofoto-seir1.jpgselja-mørtel-mikrofoto-seir1https://per-storemyr.net/wp-content/uploads/2019/09/selja-mc3b8rtel-mikrofoto-seir.jpgselja-mørtel-mikrofoto-seirMikroskopibilde av mørtelen i den gotiske delen av Albanuskirken på Selja, 1200-tallet. Vi legger merke til skjellfragmenter i tilslaget (Kalkskal), høy porøsitet (gult, Lu), lite sand i tilslaget (Sa) og ikke minst: sintermineraler (alit, C3S og ferrit C4AF) som viser at marmoren til mørtelen til dels ble brent på temperaturer nærmere 1400 grader. Foto: Torben Seir2025-11-03T19:04:00+00:00monthlyhttps://per-storemyr.net/2025/08/21/impressions-of-limestone-bioerosion-on-the-croatian-island-of-mljet/https://per-storemyr.net/wp-content/uploads/2025/08/anemone-mljet.jpganemone-mljetBeadlet anemone on top of barnacles in the tidal zone. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/biopitting-close-up.jpgbiopitting-close-upClose-up of biopitting, with the “clean” limestone above and myraid cavities with organisms, probably cyanobacteria, below. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/biopitting2.jpgbiopitting2Microphoto of biopitting, showing “clean” limestone surface above and organisms, probably cyanobacteria, in holes and cavites – and it areas “eaten” away. Widt of image c. 10 mm. Photo by Pr Storemyr.https://per-storemyr.net/wp-content/uploads/2025/08/biopitting-linear.jpgbiopitting-linearBiopitting in linear arrangement. Widt of image c. 50 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/karst-forms-mljet.jpgkarst-forms-mljetKarst between the tidal zone and the forest. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/mljet-limestone-forest.jpgmljet-limestone-forestRugged limestone between the tidal zone and the forest. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/biokarst-platform.jpgbiokarst-platformSmall platform with biokarst below black-coloured limestone affected by waves. Photo by Per Storemyr https://per-storemyr.net/wp-content/uploads/2025/08/bioerosion.jpgbioerosionLimestone fragment looking like a sponge. Perhaps natural sponges created this pattern, or rather endolithic bacteria? Photyo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/boring-shells.jpgboring-shellsBoring shells. Top: Univalve, probably Common limpet, making shallow circles. Below left: Small gastropods (white) boring more irregular holes. Below right: Dead bivalve within a bored cavity. Photos by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/08/barnacle-boring.jpgbarnacle-boringBarnacles boring small, oval holes in the limestone. Note the removed barnacle to the right. Photo by Per Storemyr2025-11-01T13:56:59+00:00monthlyhttps://per-storemyr.net/2025/10/27/tafoni-blant-jettegrytene-pa-kvaknes-kilsund/https://per-storemyr.net/wp-content/uploads/2025/10/tafoni-sildodden1.jpgtafoni-sildodden1Jettegryte på Sildodden, med tafoni i de mørkere bergartsbåndene. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/10/tafoni-kvaknes4.jpgtafoni-kvaknes4Litt tafoni i skifrig og oppsprukket berg, med en liten jettegryte i nedkant. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/10/tafoni-kvaknes3.jpgtafoni-kvaknes3Et surt, stikkende blikk: Tafoni i liten "bolle" av amfibolitt - i en brattkant. Foto tatt på lang avstand: PShttps://per-storemyr.net/wp-content/uploads/2025/10/tafoni-kvaknes2.jpgtafoni-kvaknes2Litt tafoni i de mest båndede deler av gneisen. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/10/jettegryte-tafoni-kvaknes2.jpgjettegryte-tafoni-kvaknes2https://per-storemyr.net/wp-content/uploads/2025/10/jettegryte-kvaknes1.jpgjettegryte-kvaknes1Mange av jettegrytene på Kvaknes ligger inne i skogen, litt unna svabergene ved havet. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/10/tafoni-kvaknes1.jpgtafoni-kvaknes1Tafoni i amfibolitt, nærbilde, jfr. det store bildet over. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/10/jettegryte-tafoni-kvaknes1.jpgjettegryte-tafoni-kvaknes1Stor jettegryte med litt tafoni i forkant på Kvaknes. Foto: PS2025-10-27T10:41:31+00:00monthlyhttps://per-storemyr.net/2016/12/29/geoarchaeology-of-the-famous-ancient-amethyst-mines-in-wadi-el-hudi-egypt-desert-heritage-at-risk/https://per-storemyr.net/wp-content/uploads/2016/12/google-maps-wadi-el-hudi.jpggoogle-maps-wadi-el-hudihttps://per-storemyr.net/wp-content/uploads/2016/12/logo-amethyst-hudi.jpglogo-amethyst-hudi2025-08-15T15:35:41+00:00monthlyhttps://per-storemyr.net/2025/04/15/tafoni-forvitring-i-skogsterreng-pa-flosta/https://per-storemyr.net/wp-content/uploads/2025/04/forvitret-gabbro-flosta2.jpgforvitret-gabbro-flosta2Forvitret gabbro med former som en gang kan ha vært tafoni. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/forvitret-gabbro-flosta3.jpgforvitret-gabbro-flosta3Blokker med gjennomforvitret gabbro. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/forvitret-gabbro-flosta1.jpgforvitret-gabbro-flosta1Sterkt forvitret gabbro med antydninger til "småtafoni". Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/brattkant-flosta.jpgbrattkant-flostaTypisk utforming på brattkanten, med store mengder nedfallsblokker. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/tafoni-grundesundholmen.jpgtafoni-grundesundholmenTafoni på ytterkysten av Flosta. En ser at hullet har "vokst" oppover og innover. Delene dekket av lav er eksponert for regn. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/flosta-geol-kart.jpgflosta-geol-kartGeologisk kart over området på Flosta med registrert tafoni. Kilde: NGUhttps://per-storemyr.net/wp-content/uploads/2025/04/tafoni-flosta10.jpgtafoni-flosta10Tafone i gabbro på Flosta. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/tafoni-flosta1.jpgtafoni-flosta1Tafoni i gabbro på Flosta. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/heller-tafoni-flosta3.jpgheller-tafoni-flosta3Gjennomforvitret tafonihull fra taket på helleren. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/04/heller-tafoni-flosta2.jpgheller-tafoni-flosta2Heller med tafoni i taket. Migmatitt, Flosta. Foto: PS2025-04-14T23:57:48+00:00monthlyhttps://per-storemyr.net/2025/02/14/kalkbrenning-pa-sorlandet-foredrag-pa-arkeologikafe-i-kristiansand/https://per-storemyr.net/wp-content/uploads/2025/02/arkeologikafe-kalk.jpgarkeologikafe-kalkForedrag, Arkeologikafe på Teateret i Kristiansand i regi av Agder Fylkeskommune 13.2.2025https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde41.jpgLysbilde41Vi har mange planer for videre kalkarbeid. Nå har vi i samerbeid med Fortidsminneforeningen fått midler fra Kirkebevaringsfondet til å bygge opp et lite kurs- og produksjonssenter i Tvedestrand. Velkommen på kalkbrenning!https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde40.jpgLysbilde40Kalken står bra - men bare der en ikke har problemer med stor vannavrenning fra taket. Det er ingen kalker som kan tåle problemer med vannavrenning og lekkasjer. Så det må fikses!https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde39.jpgLysbilde39På Holt kirke i Tvedestrand er det også brukt tradisjonskalk - en kombinasjon av kalk fra Moster og Brevik.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde38.jpgLysbilde38Slik ser det ut på Hedrum kirke nå vinteren 2025. Det ferdig pussed skipet blir fortsatt beskyttet mot det verste været ved hjelp av nettingduk.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde37.jpgLysbilde37Brevikkalken sto seg bra og ble i 2024 valgt til hovedkalk for restaureringen av Hedrum kirke.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde36.jpgLysbilde36Brevikkalk ble valgt som en av kalkene til testing for restaurering av Hedrum middelalderkirke i Vestfold i 2023.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde35.jpgLysbilde35Det var nok lurt at vi ikke bare satset på den brune Frolandskalken! Fin i fargen, men for restaurering vil en gjerne ha hvitere kalk.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde34.jpgLysbilde34Den brente kalken testes på kalkovnen selv - så blir den også reparert.https://per-storemyr.net/wp-content/uploads/2025/02/lysbilde33.jpgLysbilde33Her er en typisk brennsyklus. Den tar ca. 3 dager.2025-03-02T23:55:20+00:00monthlyhttps://per-storemyr.net/2025/02/22/the-grotesque-world-of-tafoni-weathering-on-the-south-coast-of-norway/https://per-storemyr.net/wp-content/uploads/2025/02/jabba-the-hutt-tafoni.jpgjabba-the-hutt-tafoniJabba the Hutt. Tafoni on the south coast of Norway. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/02/tafoni-grotesque-south-coast-norway-print1.jpgtafoni-grotesque-south-coast-norway-print1The Grotesque World of Tafoni Weathering on the South Coast of Norway. Photos: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2025/02/tafoni-grotesque-south-coast-norway-small1.jpgtafoni-grotesque-south-coast-norway-small1The Grotesque World of Tafoni Weathering on the South Coast of Norway. Photos: Per Storemyr2025-02-23T00:01:47+00:00monthlyhttps://per-storemyr.net/2024/08/16/tafoni-weathering-on-the-island-of-elba-impressions-and-questions/https://per-storemyr.net/wp-content/uploads/2024/08/tafoni-tromoy1.jpgtafoni-tromøy1Small-scale tafoni in Proterozoic banded gneiss on Tromøy, S-Norway. Compare with tafoni in schist on Spiaggia di Terranera. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/08/geological-map-elba-1885.jpggeological-map-elba-1885An early geological map of Elba (1885) with locations studied in this article marked. The map can be viewed at https://www.mindat.org/photo-477733.htmlhttps://per-storemyr.net/wp-content/uploads/2024/08/tafoni-corsica.jpgtafoni-corsicaTafoni in granite boulder landscape at Filitosa on Corsica. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/08/tafoni-elba.jpgtafoni-elbaTafoni at three sites on Elba: Spiaggia della Calle, Monte Capanne and Terranera. Photos by Per Storemyr2025-02-22T19:33:11+00:00monthlyhttps://per-storemyr.net/2025/01/06/tafoni-forvitring-pa-sorlandskysten-havets-og-landhevingens-betydning/https://per-storemyr.net/wp-content/uploads/2025/01/nedfall-mineralkorn-tafonihull.jpgnedfall-mineralkorn-tafonihullNedfalte mineralkorn i tafonihull etter frostepisode. Om kornene kom fra hullet selv eller omgivelsene er uklart. Spornes. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-nedfall-etter-ising-spornes.jpgtafoni-nedfall-etter-ising-spornesNedfall av mineralkorn (piler) etter en episode med ising på en brattkant med tafoni. Spornes, Tromøy. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-spornes-hode.jpgtafoni-spornes-hodeBisarr tafoni på Spornes. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-med-nedfall-spornes-samlet1-1.jpgtafoni-med-nedfall-spornes-samlet1Materiale falt ned i tafone vinteren 2025 (Spornes, Tromøy). Piler antyder hvor materialet kommer fra. Makrofoto under viser hvordan "sanden" ser ut (mm-skala). Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/spornes-tafoni-lav-14m.jpgspornes-tafoni-lav-14mTafoni under lav på Spornes, ca. 14 m.o.h. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/nautholmen-tafoni-lav.jpgnautholmen-tafoni-lavTafoni under lav og mose mot toppen av Nautholmen. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-sprekker-spornes.jpgtafoni-sprekker-spornesTafoni som del av forvitring i sprekkesone, Spornes. Fot: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-skinnfelltangen.jpgtafoni-skinnfelltangenTafoni på Skinnfelltangen. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-korshavn-flosta.jpgtafoni-korshavn-flostaBisarre tafoniformer i Korshavn på Flosta. Foto: PShttps://per-storemyr.net/wp-content/uploads/2025/01/tafoni-nautholmen-flosta-1.jpgtafoni-nautholmen-flosta2025-02-22T12:24:33+00:00monthlyhttps://per-storemyr.net/services-research/2025-02-21T20:46:59+00:00weekly0.6https://per-storemyr.net/2019/03/25/kinn-kirke-et-utstillingsvindu-for-devonsk-sandstein/https://per-storemyr.net/wp-content/uploads/2019/03/kinn-devonsandstein.jpgkinn-devonsandsteinDevonsandsteinen på Kinn kirke. Til høyre: "Rustet", naturlig overflate med isskuringsstriper. Til venstre: Splittet overflate med "frisk", grønnlig farge. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-10.jpgkinn-kirke-mars-2019-10En lys og en mørk klebertype på et av vinduene i skipets nordfasade. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-nordportal-2014.jpgkinn-nordportal-2014Den romanske nordpotalen på skipet. Foto: Per Storemyr (2014)https://per-storemyr.net/wp-content/uploads/2019/03/devonsk-sandstein-flybilde.jpgdevonsk-sandstein-flybildeUtsnitt av flybilde over en del av øylandskapet nordøst for Kinn. Vi ser tydelige hvor regelmessig den devonske sandsteinen spalter. Foto: Norge i bilderhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-nordfasade-small.jpgkinn-nordfasade-smallKinn kirke med nordfasaden full av algevekst i 2014. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-9.jpgkinn-kirke-mars-2019-9Det regelmessige murverket på nordsiden av skipet. Steinene er hvite fordi det er vanskelig å få vekk alle rester av gammel puss. Bak det hvite er steinen ofte grågrønn. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-8.jpgkinn-kirke-mars-2019-8"Tilbakerestaurert" vindu fra 1912-restaureringen. Vi ser at mørke stein er fult inn i rommet etter fjerningen av vinduer fra 1868. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-7.jpgkinn-kirke-mars-2019-7https://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-6.jpgkinn-kirke-mars-2019-6Nordmuren i skipet med regelmessige skifteganger. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/03/kinn-kirke-mars-2019-5.jpgkinn-kirke-mars-2019-5Del av det merkelige spranget i muren på nordmuren i skipet. Dette spranget definerer overgangen mellom to byggeperioder. Foto: Per Storemyr2025-02-21T20:43:32+00:00monthlyhttps://per-storemyr.net/2024/09/05/the-stones-and-mortars-of-the-medieval-cathedral-on-the-faroe-islands/https://per-storemyr.net/wp-content/uploads/2024/09/faroe-cathedral-setting.jpgfaroe-cathedral-settingThe scenic location of Kirkjubøur, with the cathedral under restoration in 2017. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/faroe-cathedral-lime.jpgfaroe-cathedral-limeSeashell lime mortars can be most easily seen in the sacristy by the north side of the cathedral. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/faroe-cathedral-soapstone.jpgfaroe-cathedral-soapstoneHomogeneous soapstone at the cathedral. Reliquary box and consecration cross. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/faroe-cathedral-portal.jpgfaroe-cathedral-portalThe medieval cathedral of the Faroe Islands is a half-ruin. Here’s the south portal in the nave, carved from soft basalt and within a rubble masonry of hard basalt fitted tightly together with basalt pinning stone and minimal use of seashell lime mortar. Photo by Per Storemyr 2025-02-14T01:33:52+00:00monthlyhttps://per-storemyr.net/2024/01/10/middelalderkirker-i-stein-hva-mikroskopanalyse-av-kalkmortler-kan-fortelle-om-historie-skader-og-mortelvalg-for-restaurering/https://per-storemyr.net/wp-content/uploads/2024/01/sorbo9-xpl-marmor.jpgsørbø9-xpl-marmorDet er vakkert i mikroskopets verden. Her underbrent dolomittisk marmorfragment fra Sørbø kirke. Det er kun de brune delene som har fått høy nok temperatur til å kunne leskes. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/hedrum-mortel-skipet.jpghedrum-mørtel-skipetHedrum kirke: Hard og sterkt frostsprengt middelaldermørtel på skipets sørside, bak moderne sementmørtel. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/hedrum-kirke.jpghedrum-kirkeHedrum kirke under forberedelser til restaurering sommeren 2023, med bl.a. prøvefeltet på kor og apsis. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/hedrum1-ppl.jpghedrum1-pplHedrum kirke. Mikrobilde av den harde, middelalderske kalkmørtelen på skipet. Bindemidelet (Bm) er mørk og hydraulisk. Det er mange riss med utgangspunkt i porene (Po). Sandtilslaget (Ts) er preget av feltspat som er sterkt etset i kantene og bidrar til mørtelens høye styrke. Planpolarisert lys. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/hedrum-1-slagg-xpl.jpghedrum-1-slagg-xplHedrum kirke. Slagg fra kalkbrenning i hard middelaldermørtel på skipet. De typiske komponentene i slagget er pyroksen (fargerik) og melilitt (grålig). Hydraulisk bindemiddel er mørkt brunt. Krysspolarisert lys. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/t4-a-ppl.jpgT4-a-pplTingvoll kirke: Mikrobvilde av mørtel fra innvendig vegg for gangsystem i skipet. Mørtelen er svært oppløst av fukt og det er nesten bare tilslagskorn (lyse) og porer (gule) igjen. Planpolarisert lys. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/tingvoll-mortelprove.jpgtingvoll-mørtelprøveTingvoll kirke: Mørtelprøve fra innvendig vegg i gangsystemet på nordsiden av skipet. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/tingvoll-kirke.jpgtingvoll-kirkeTingvoll kirke på Nordmøre: Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/tingvoll4-xpl.jpgtingvoll4-xplTingvoll kirke. Mikrobilde av mørtel fra innvendig vegg i gangsystem på nordsiden av skipet. Det lyse er rekrystallisert kalk som binder sammen riss og porer. Krysspolarisert lys. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/01/tingvoll-interior.jpgtingvoll-interiørSkipet i Tingvoll kirke, med kalkmalerier på nordveggen. Over maleriene går en del av de unike gangene inne i muren. I veggen som vender mot kirkerommet har det tidligere vært mye fukt, og herfra er det tatt mørtelprøver. Foto: Per Storemyr2025-02-10T12:09:05+00:00monthlyhttps://per-storemyr.net/subscribe/2025-02-10T00:39:45+00:00weekly0.6https://per-storemyr.net/2024/10/07/slag-in-norwegian-medieval-lime-mortars/https://per-storemyr.net/wp-content/uploads/2024/10/smiilla-slag1.jpgsmiilla-slag1Piece of slag from burning of impure marble at Smilla limeworks (c. 1890-1940) in Hyllestad, West Norway. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/ringsaker-with-slag.jpgringsaker-with-slagSlag-rich mortar prepared as hotmix based on impure Ringsaker limestone. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/ringsaker-mortel-pm-ppl.jpgringsaker-mørtel-pm-pplMicrophoto of lime mortar based on impure Ringsaker limestone. Fired at tempearture too low to produce slag. The dark elongated fragments are burnt slate/schist components. Photo by Per Storemyr https://per-storemyr.net/wp-content/uploads/2024/09/ringsaker-limestone.jpgringsaker-limestoneImpure Ordovician Ringsaker limestone, with a cut orthoceras fossil in the middle. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/slagg-ringsaker.jpgslagg-ringsakerSlags from burning Ringsaker ordovician limestone. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/slagg-porsgrunn.jpgslagg-porsgrunnSlag developed in the lower reaches of the kiln on burning Porsgrunn limestone. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/ulnes-mikroskopi.jpgulnes-mikroskopiMicrophotos of the Ulnes medieval mortar. Photos by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2024/09/ulnes-provefoto.jpgulnes mortarTypical medieval mortars at Ulnes church, with no added aggregate.https://per-storemyr.net/wp-content/uploads/2024/09/ulnes-kor-loft.jpgulnes-kor-loftThe eastern chancel wall at the loft of Ulnes church, with medieval joint mortars.https://per-storemyr.net/wp-content/uploads/2024/09/ulnes-fuger-kor.jpgulnes-fuger-korPart of the exterior, eastern chancel wall at Ulnes church, with medieval joint mortars, after removal of poor, modern plaster. 2024-10-23T11:54:49+00:00monthlyhttps://per-storemyr.net/2024/10/20/historien-om-en-brent-knollekalk/https://per-storemyr.net/wp-content/uploads/2024/10/knollekalkmortel.jpgKnollekalkmørtel med rødbrunt fragmentKnollekalkmørtel med rødbrunt fragmenthttps://per-storemyr.net/wp-content/uploads/2024/10/torrlesket-knollekalk.jpgTørrlesket, brent knollekalkTørrlesket, brent knollekalkhttps://per-storemyr.net/wp-content/uploads/2024/10/brent-knollekalk.jpgbrent-knollekalkBrent knollekalkhttps://per-storemyr.net/wp-content/uploads/2024/10/knollekalk-bit.jpgBiten av knollekalkBiten av knollekalkhttps://per-storemyr.net/wp-content/uploads/2024/10/knollekalk-hovedoya.jpgknollekalk-hovedøyaKnollekalk på Hovedøya ved Oslo2024-10-26T13:03:49+00:00monthlyhttps://per-storemyr.net/2024/01/19/vinterbrenning-av-brevikkalk-med-beskrivelse-av-kalkens-geologi-og-egenskaper/https://per-storemyr.net/wp-content/uploads/2024/01/brevikkalk-mortel-small.jpgMørtel BrevikkalkTypisk mørtel som vi har laget av Brevikkalk. Hotmix, blandingsforhold ca. 1:1.https://per-storemyr.net/wp-content/uploads/2024/01/brevikkalk-hvitting.jpgbrevikkalk-hvittingDen typiske hvite, litt gyldne, gulbeige fargen på hviting av Brevikkalkhttps://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning8.jpgvinterbrenning8Kalken kakkes opp. De med ubrente kjerner blir forkastet.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning7.jpgvinterbrenning7Den brente kalken klar til å tas ut av ovnen.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning5.jpgvinterbrenning5Kalken pakkes i tette tønner.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning6.jpgvinterbrenning6God fyr i ovnen og det er tid for å reparere sprekker med kalkmørtel.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning4.jpgvinterbrenning4Etter hvert nær kontinuerlig ilegg av ved for å holde temperaturen oppe.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning3.jpgvinterbrenning3Varmefordelingen i ovnen er ganske god.https://per-storemyr.net/wp-content/uploads/2024/01/vinterbrenning2.jpgvinterbrenning2Det nærmer seg avslutning.https://per-storemyr.net/wp-content/uploads/2024/01/kalkovnen-lia1.jpgkalkovnen-lia1Et lite, men funksjonelt anlegg i dypsnøen. Foto: Tarald Storemyr2024-04-28T10:45:51+00:00monthlyhttps://per-storemyr.net/2022/03/22/den-25-kalkbrenningen-i-hyllestad-5-ar-med-hjemmebrenning-og-bruk-av-vestlandets-tradisjonskalker/https://per-storemyr.net/wp-content/uploads/2022/03/marmoroyen-mortelprover.jpgmarmorøyen-mørtelprøverMørtelprøver av de ulike sorteringene med kalk fra Marmorøyen. Fra venstre hvit, beige og uren (brun). Prøvene er laget 36.3.2022 som hotmix med sand fra Loneland (siktet til 0-5 mm), ferdig blandingsforhold ca. 1:1. Det var lett å leske de hvite og beige sortene, mens den urene sorten tok litt lengre tid, noe som er et kjent fenomen ved lett hydraulisk kalk. Den urene kalken var brent nederst i ovnen på ca. 1100-1200 grader.https://per-storemyr.net/wp-content/uploads/2022/03/marmor-testet-vesleovnen1.pngmarmor-testet-vesleovnen1Oppsummering av egenskapene til de ulike marmor- og skjellsorter brent i Vesleovnen. I tabellen er de rangert etter hvor lette de er å brennehttps://per-storemyr.net/wp-content/uploads/2022/03/kalkovn-mosterhamn-under-bygging.jpgkalkovn-mosterhamn-under-byggingDen nye10-tonns kalkovnen i Mosterhamn under bygging ved murerkurs støttet av Fortidsminneforeningen i mars 2022https://per-storemyr.net/wp-content/uploads/2022/03/kalkovn-mosterhamn.jpgkalkovn-mosterhamnDen nye kalkovnen i Mosterhamn nesten ferdig (mars 2022). Tak over selve ovnen er nå under bygging. Foto: Bent Morten Steinsland, lokalt ansvarlig for byggingenhttps://per-storemyr.net/wp-content/uploads/2022/03/marmor-testet-vesleovnen.pngmarmor-testet-vesleovnenOppsummering av egenskapene til de ulike marmor- og skjellsorter brent i Vesleovnen. I tabellen er de rangert etter hvor lette de er å brennehttps://per-storemyr.net/wp-content/uploads/2022/03/geologi-norge-maror-brenning.jpggeologi-norge-maror-brenningMarmorforekomster testet i Vesleovnen. Hver forekomst har normalt et par ulike typer marmor. Fra hver forekomst er det hentet flere hundre kilo stein, stort sett ved manuelt arbeid (med tillatelse).https://per-storemyr.net/wp-content/uploads/2022/03/vesleovnen-vedforbruk-utbytte.pngvesleovnen-vedforbruk-utbytteVedforbruk gjenom 19 brenninger av marmor i Vesleovnen. Som en ser er vedforbruket tett knyttet til brenntidenhttps://per-storemyr.net/wp-content/uploads/2022/03/vesleovnen-brenntid-utbytte.pngvesleovnen-brenntid-utbytteUtvikling av brenntid for 19 brenninger av matrmor i Vesleovnen. Utbyttet har mesteparten av tiden lagt på ca. 70 kg brentkalkhttps://per-storemyr.net/wp-content/uploads/2022/03/vesleovnen-25-brenning-17.jpgvesleovnen-25-brenning (17)Kalkovnene i Hyllestad. Storovnen og Vesleovnen er reparert og slemmet med Mosterkalk etter siste brenning i mars.https://per-storemyr.net/wp-content/uploads/2022/03/vesleovnen-25-brenning-14.jpgvesleovnen-25-brenning (14)Brent kalk av marmor fra Marmorøyen sortert: Hvit slemme- og hvittekalk, lett beige puss- og spekkekalk, samt lysebrun spekke- og murekalk2024-04-23T13:18:21+00:00monthlyhttps://per-storemyr.net/2024/04/21/tradisjonell-kalkbrenning-i-sma-vedfyrte-ovner-erfaringer-fra-6-brenninger-i-tvedestrand/https://per-storemyr.net/wp-content/uploads/2024/04/brevikmarmor-polmik.jpgbrevikmarmor-polmikBrevikkalk er en kontaktmetamorf kalkstein - en marmor med kalkspatkrystaller. Den tette, krystalline strukturen gjør den til en "seigbrent" kalk. Mikrobilde, polarisasjonsmikroskop, krysspolarisert lys. Her fra et svært rent parti.https://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse11.jpglia-analyse11Kvalitetssikring. Hver stein sjekkes for kjerner - om den er gjennombrenthttps://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse10.jpglia-analyse10Ovnen brenner og ved etterkløyveshttps://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse9.jpglia-analyse9Fyring med kubber på kryss og tvers i hele ovnsåpningen for å trekke varmen lengre foran i ovenhttps://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse8.jpglia-analyse8Flammegjennomslaget begynner å bli stabilt og det er snart tid for å starte tildekking av ovnstoppenhttps://per-storemyr.net/wp-content/uploads/2024/04/lia-brenninger-diagram.pnglia-brenninger-diagramUtbytte og brenntid fra 6 kalkbrenninger på Lia 2023-24https://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse7.jpglia-analyse7Store sprekker tettes med kalkmørtel mens oven er i drifthttps://per-storemyr.net/wp-content/uploads/2024/04/ovnen1.jpgovnen1Fra reparasjon og fylling av ovn til brenning og uttak (mars 2024)https://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse6.jpglia-analyse6Hvelvet er bygd og stokker satt inn der trekkanalene skal byggeshttps://per-storemyr.net/wp-content/uploads/2024/04/lia-analyse3.jpglia-analyse3Blålige flammer på toppen av ovnen antyder at brenningen begynner å gå mot slutten. Her fra brenningen i april 20242024-04-26T11:14:37+00:00monthlyhttps://per-storemyr.net/2023/03/28/mosterkalk-tradisjonell-kalkbrenning-med-ved-i-mosterhamn/https://per-storemyr.net/wp-content/uploads/2023/03/moster-gamle-kirke.jpgmoster-gamle-kirkeMoster gamle kirke trenger vedlikehold av det pussede murverkethttps://per-storemyr.net/wp-content/uploads/2023/03/tidsforbruk-kalkovner.pngtidsforbruk-kalkovnerTidsforbruk ved kalkbrenning i tradisjonelle ovner i Europa. Vi ser at Mosterovnen ligger litt under tilsvarende ovner i Sveits. Kilder/bakgrunnsdata kan fås ved henvendelse til undertegnedehttps://per-storemyr.net/wp-content/uploads/2023/03/vedforbruk-kalkovner.pngvedforbruk-kalkovnerVedforbruk ved kalkbrenning i tradisjonelle ovner i Europa. Vi ser at Mosterovnen ligger nær tilsvarende ovner i Sveits. Kilder/bakgrunnsdata kan fås ved henvendelse til undertegnedehttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning11.jpgmoster-brenning11Full fyr langs periferien ved ilegg av ved i ovnenhttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning10.jpgmoster-brenning10Bent Morten Steinsland og Tore Granmo sorterer og pakker den brente kalkenhttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning9.jpgmoster-brenning9Rødglødene ovn i nattenhttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning8.jpgmoster-brenning8Noen slapper av - Torbjørn Opheim kløyver fuktig ved for å få den til å brenne bedre!https://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning7.jpgmoster-brenning7Meditativt. Tore Granmo og Joakim Rehaug Roth slapper av mellom sprenfyringenhttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning6.jpgmoster-brenning6Leiredekket på toppen begynner å ta formhttps://per-storemyr.net/wp-content/uploads/2023/03/moster-brenning5.jpgmoster-brenning5Mye fukt skal ut av ovnskonstruksjon og marmorfyllingen i starten av brenningen2024-04-23T10:15:44+00:00monthlyhttps://per-storemyr.net/2023/12/16/smaskala-kalkbrenning-geologisk-mangfold-i-kulturminnevernets-tjeneste/https://per-storemyr.net/wp-content/uploads/2023/12/1-kalkovn-hinterbruhl-small.jpg1-kalkovn-hinterbrühl-smallFigur 1: Den vanligste formen for tradisjonelle, vedfyrte kalkovner i Europa: En steinbygd, sylindrisk ovn med buet fyråpning, delvis gravd inn i en bakke for å holde godt på varmen og for å lette tilgangen til ovnstoppen. Ovnstypen er beregnet på periodisk brenning, dvs. nedkjøling og uttak av brent kalk før ny fylling og brenning. Her fra Hinterbrühl i Østerrike. Maleri av Ferdinand Georg Waldmüller 1845. Kilde: Wikimedia Commons (public domain).2024-04-23T09:45:43+00:00monthlyhttps://per-storemyr.net/2023/12/28/norwegian-medieval-lime-mortars-under-the-microscope/https://per-storemyr.net/wp-content/uploads/2023/12/lime-geological-map-norway-new-1.jpgLayout 1Lime resources in South Norway. Clusters of resources define traditional lime burning districts. Geology from The Geological Survey of Norway, adapted by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/12/slagg-hedrum-skip-og-porsgrunnskalk.jpgslagg-hedrum-skip-og-porsgrunnskalkSlag in lime lumps burnt at high temperatures. Left: mortar from the 12th C Hedrum church, SE Norway. Right: impure, fossil-rich, Silurian limestone burn in our small kiln at the south coast in 2023. Photos by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/12/medieval-mortars-norway-high.jpgmedieval-mortars-norway-highhttps://per-storemyr.net/wp-content/uploads/2023/12/medieval-mortars-norway-medium.jpgmedieval-mortars-norway-mediumA taste of Norwegian medieval lime mortars under the microscope. Click on image for higher resolution.https://per-storemyr.net/wp-content/uploads/2023/12/medieval-mortars-norway-featured.jpgmedieval-mortars-norway-featuredNorwegian medieval lime mortars under the microscope: Top left: Underburnt limestone fragment. Top right: Underburnt contact metamorphic limestone fragment. Bottom left: Slag from burning impure limestone at high temperature. Bottom right: Unhydrated belite from burning impure limestone at moderate-high temperature. Microhotos by Per Storemyr 2024-03-28T22:55:37+00:00monthlyhttps://per-storemyr.net/2023/11/03/kalkbrennerkurs-i-tvedestrand-for-fortidsminneforeningen/https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-11.jpgbrennekurs-lia-oktober-23-11Et av testfeltene våre med flere kalktyper, Brevikkalk er blant dem – og hvittingen er med Brevikkalk.https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-6.jpgbrennekurs-lia-oktober-23-6Inntrykk fra fyllingen av ovnenhttps://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-7.jpgbrennekurs-lia-oktober-23-7Inntrykk fra kalksteinsgruvene i Brevik og leveranse til Liahttps://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-8.jpgbrennekurs-lia-oktober-23-8Ulike stadier av brenningenhttps://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-9.jpgbrennekurs-lia-oktober-23-9Å spa ut glødende kull…https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-10.jpgbrennekurs-lia-oktober-23-10Inntrykk fra uttak av den brente kalkenhttps://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-2.jpgbrennekurs-lia-oktober-23-2En del av deltakerne med den brente kalken, pakket i tønner. Foran f.v. Anders Oppegaard og Oddvin Kverhellen. Bak f.v. Tor Granerund, Jan Petter J-P Balavoine, Alf Kristian Egeland og Peter Andersen.https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-1.jpgbrennekurs-lia-oktober-23-1Sprengfyring i kalkovnen under kalkbrennerkurs i Tvedestrand.https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-5.jpgbrennekurs-lia-oktober-23-5Ovnen er fylt og det brennes av fukt.https://per-storemyr.net/wp-content/uploads/2023/11/brennekurs-lia-oktober-23-4.jpgbrennekurs-lia-oktober-23-4Alf Kristian Egeland hvitter ovnen mens den er i full fyr.2024-01-17T11:27:37+00:00monthlyhttps://per-storemyr.net/2023/11/30/egyptian-archaeology-chephrens-quarry-now-largely-destroyed-by-the-toshka-megaproject/https://per-storemyr.net/wp-content/uploads/2023/11/chisel-quarry-2014-2023.jpgchisel-quarry-2014-2023The famous Chisel quarry, a vital part of Chephren’s Quarry. Intact in 2014, destroyed by agricultural development 2023. Source: Google Earthhttps://per-storemyr.net/wp-content/uploads/2023/11/chisel-quarry-2023.jpgchisel-quarry-2023Chisel quarry 2023https://per-storemyr.net/wp-content/uploads/2023/11/chisel-quarry-2014.jpgchisel-quarry-2014Chisel quarry 2014https://per-storemyr.net/wp-content/uploads/2023/11/toska-project-screenshot-youtube1.jpgtoska-project-screenshot-youtube1Aerial view of part of the land reclamation in the Toshka project, giving an impression of the layout. Screenshot from Egyptian promotion video. Source: https://www.youtube.com/watch?v=4C0u1h4DCTEhttps://per-storemyr.net/wp-content/uploads/2023/11/chephren-2023.jpgchephren-20232023https://per-storemyr.net/wp-content/uploads/2023/11/chephren-2019.jpgchephren-20192019https://per-storemyr.net/wp-content/uploads/2023/11/chephren-2017.jpgchephren-20172017https://per-storemyr.net/wp-content/uploads/2023/11/chephren-2010.jpgchephren-20102010https://per-storemyr.net/wp-content/uploads/2023/11/chephren-2002.jpgchephren-20022002https://per-storemyr.net/wp-content/uploads/2023/11/chephren-1997.jpgchephren-199719972023-12-01T11:39:33+00:00monthlyhttps://per-storemyr.net/2023/08/22/nidarosdomens-grunnfjell-na-tilgjengelig-som-digibok-i-nasjonalbiblioteket/https://per-storemyr.net/wp-content/uploads/2023/08/nidarosdomens-grunnfjell-nb.jpgnidarosdomens-grunnfjell-nbNidarosdomens grunnfjell som digibok i Nasjonalbiblioteket2023-08-22T20:22:11+00:00monthlyhttps://per-storemyr.net/contact/2023-06-01T21:04:12+00:00weekly0.6https://per-storemyr.net/2023/04/03/moster-gamle-kirke-middelalderkirken-som-ligger-midt-i-et-steinbruddslandskap/https://per-storemyr.net/wp-content/uploads/2023/04/mosterhamn-synken.jpgmosterhamn-synken"Synken" i Mosterhamn - for ikke lenge siden et stort marmorbrudd, nå en fredelig, vannfylt oase. Foto: Per Storemyr 2021https://per-storemyr.net/wp-content/uploads/2023/04/moster-gamle-kirke-2022.jpgmoster-gamle-kirke-2022Moster gamle kirke slik den nå står med pussede vegger og ganske så sliten av forvitring. Til sommeren (2023) skal kirken vedlikeholdes og få nytt lag med slemming og hvitting, selvsagt med Mosterkalk! Foto: Per Storemyr 2022https://per-storemyr.net/wp-content/uploads/2023/04/moster-gamle-kirke-kleberstein-sokkel.jpgmoster-gamle-kirke-kleberstein-sokkelMoster gamle kirke, kleberstein i sokkelen. Foto: Per Storemyr 2001https://per-storemyr.net/wp-content/uploads/2023/04/urda-kleberbrudd.jpgurda-kleberbruddUrda kleberbrudd på Lykling, Bømlo. Foto Per Storemyr 2015https://per-storemyr.net/wp-content/uploads/2023/04/moster-gml-kirke-enger-1947-nb.jpgmoster-gml-kirke-enger-1947-nbMoster gamle kirke under restaurering i 1947 - da pussen ble fjernet fra sørfasaden. Foto: Cato Enger, Riksantikvarens arkivhttps://per-storemyr.net/wp-content/uploads/2023/04/moster-gamle-kirke-uten-puss-normann-ra-small.jpgMoster gamle kirke. EksteriørMoster gamle kirke mellom 1947 og 1974, mens murverket på sørfasaden sto åpent. Foto: Normann, Riksantikvarens arkivhttps://per-storemyr.net/wp-content/uploads/2023/04/moster-skjellsand-korgavl.jpgmoster-skjellsand-korgavlMoster gamle kirke, korets gavl, med skjellsand som tilslag i murmørtelen fra middelalderen. Foto: Per Storemyr 2022https://per-storemyr.net/wp-content/uploads/2023/04/moster-ubrent-marmor-korgavl.jpgmoster-ubrent-marmor-korgavlMoster gamle kirke, korets gavl, med stor ubrent marmorkjerne i den middelalderske murmørtelen. Foto: Per Storemyr 2022https://per-storemyr.net/wp-content/uploads/2023/04/moster-gml-kirke-korgavl.jpgmoster-gml-kirke-korgavlMoster gamle kirke, korets gavl - bygd av store marmorblokker. Foto: Per Storemyr 2022https://per-storemyr.net/wp-content/uploads/2023/04/moster-gamle-kirke-skipsgavl-ost.jpgmoster-gamle-kirke-skipsgavl-østMoster gamle kirke, skipets østgavl - bygd med flere typer stein og med den middelalderske pussen intakt. Foto: Per Storemyr 20222023-04-03T18:44:25+00:00monthlyhttps://per-storemyr.net/2023/02/23/fryktelig-forvitret-men-likevel-bra-bevart-om-helleristningene-i-gjerpensdalen-skien/https://per-storemyr.net/wp-content/uploads/2023/02/hoppestad2-forvitring.jpghoppestad2-forvitringBergkunstfeltet Hoppestad 2. Ganske godt bevart, men forvitringen spiser seg inn mot skipsfigurene. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/dsc_3871a.jpgHoppestad 2Del av skip på Hoppestad 2. Overflaten er hullet pga. oppløsning av karbonat i sement og små fossilrester. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/polmik-nordbo.jpgpolmik-nordbøSandstein med fine kvartskorn (Q), kvartssement (Qs) og karbonatsement (Cs). Polarisasjonsmikroskopi. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/hop2-palys2.jpghop2-pålys2Sandstein med svært hullet overflate, et resultat av oppløsning av karbonatsement og små skjellfragmenter. Tynnslip, pålys. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/hop2.jpghop2Hullet overflate i sandstein. En kan skjelne avtrykk av oppløste fossilfragmenter. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/aas4.jpgaas4Hard, men oppsprukket sandstein i veksling med skjellrike, leirete lag. Disse brytes fort ned og sandsteinen mister sitt "fundament" og faller fra hverandre som små blokker. Ås 4. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/aas2.jpgaas2Hjorteklover. Svært sjeldne figurer som i Norge kun finnes i Gjerpensdalen. Ås 2. Foto: P. Storemyr https://per-storemyr.net/wp-content/uploads/2023/02/aakerholme.jpgaakerholmeTettvokst åkerholme med bergkunstfelter, Ås 1. Foto: P. Storemyr https://per-storemyr.net/wp-content/uploads/2023/02/rotspreng.jpgrotsprengRot som sprenger seg mellom en sprekk som en gang kun var knapt en mm bred. Hoppestad. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2023/02/hoppestad-2.jpghoppestad-2Bergkunstfeltet Hoppestad 2 på en lav åkerholme i Gjerpensdalen. De siste 12-13 årene har feltet vært dekket med duker og gummimatter for å holde forvitringen i sjakk. Foto: P. Storemyr2023-02-24T12:46:19+00:00monthlyhttps://per-storemyr.net/2021/07/30/nytt-liv-for-mosterkalk-brenning-og-testing-av-vestlandets-viktigste-kalkressurs-i-gamle-dager/https://per-storemyr.net/wp-content/uploads/2021/07/mosterkirke-med-brudd-bak-dm-1930.webpmosterkirke-med-brudd-bak-dm-1930Mosterhamn er historisk, med Moster gamle kirke. Her fra tidlig 1900-tall med marmorbrudd som skimtes i bakgrunnen. Kilde: Digitalt Museum – https://digitaltmuseum.no/011012831984/moster-kyrkjehttps://per-storemyr.net/wp-content/uploads/2021/07/tore-brynjar-mostramarmor.jpgtore-brynjar-mostramarmorBrynjar Stautland og Tore Granmo i ferd med å velge ut Mostermarmor til brenninghttps://per-storemyr.net/wp-content/uploads/2021/07/temperaturdiagram-vesleovnen-mosterkalk-juni-2021.pngtemperaturdiagram-vesleovnen-mosterkalk-juni-2021Rekonstruert temperaturdiagram for brenningen. Full logg herhttps://per-storemyr.net/wp-content/uploads/2021/07/mostratunet-kalkovnsplass.jpgmostratunet-kalkovnsplassSlik forestiller vi oss den planlagte store kalkovnen i Mostratunet i Mosterhamnhttps://per-storemyr.net/wp-content/uploads/2021/07/mosterbrudd-dm-1916-1919.jpgmosterbrudd-dm-1916-1919Et blikk inn i et av marmorbruddene på Bømlo omkring 1920. Kilde: Digitalt Museum – https://digitaltmuseum.no/021015588359/bruddethttps://per-storemyr.net/wp-content/uploads/2021/07/kalkovn-moster1.jpgkalkovn-moster1Kvinesdølen Ole Hansen Sjækkelandsmoen tok opp igjen kalkbrenninga i Mosterhamn på 1800-tallet. Han kom hit 19 år gammel i 1844. Kalkovnen på bildet skal være bygd omkring 1890 av landhandler Mons Gabrielsen frå Valestrand. Se: https://digitaltmuseum.no/011085439828/kalksteinsdrifta-pa-mosterhttps://per-storemyr.net/wp-content/uploads/2021/07/kalkbrenning-juni-2021-6.jpgkalkbrenning-juni-2021-6Uttak av den brente Mosterkalken. Bøttene til venstre har utsortert dårlig brent kalk fra toppen av ovnenhttps://per-storemyr.net/wp-content/uploads/2021/07/kalkbrenning-juni-2021-5.jpgkalkbrenning-juni-2021-5Slutten av brenningen. Topplokket er fjernet og det gløder godt i ovnenhttps://per-storemyr.net/wp-content/uploads/2021/07/kalkbrenning-juni-2021-4.jpgkalkbrenning-juni-2021-4Det begynner å gløde mot toppen av ovnen, etter 4-5 timers brenninghttps://per-storemyr.net/wp-content/uploads/2021/07/kalkbrenning-juni-2021-3.jpgkalkbrenning-juni-2021-3Fylling av Vesleovnen starter med bygging av et enkelt tønnehvelv. Så følger ilegg av marmor, biter på størrelse med to-tre knyttnevner nede, mindre mot toppen. I hvert hjørne bygges det inn trekkanaler2022-11-17T14:31:26+00:00monthlyhttps://per-storemyr.net/2022/07/20/ny-base-pa-sorlandet/https://per-storemyr.net/wp-content/uploads/2022/07/oyestad-portal.jpgøyestad-portalDen gotiske sørportalen til Øyestad kirkehttps://per-storemyr.net/wp-content/uploads/2022/07/oyestad.jpgøyestadØyestad kirke ble kalket for noen år tilbake. Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/dypvag.jpgdypvågDypvåg kirke er den minste av de middelalderske steinkirkene på Sørlandet, sterkt ombygd som tømmerkirke etter reformasjonen. Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/fjaere-apside.jpgfjære-apsideApsider er ikke veldig vanlig i norske middelalderkirker. Her Fjære kirke. Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/holt.jpgholtHolt kirke er for tiden under restaurering ved Bøylestad Moen AS og Ragg AS. Her skal bl.a. de middelalderske veggene kalkes. Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/arendal-small.jpgarendal-smallArendal sett fra Fløyheia sommeren 2022. Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/tromoy.jpgtromøyTromøy kirke trenger nok til vedlikehold med kalk! Foto: PShttps://per-storemyr.net/wp-content/uploads/2022/07/fjaere-sorportal.jpgfjære-sørportalSkipets sørportal i Fjære kirke. Foto: PS2022-10-31T00:42:27+00:00monthlyhttps://per-storemyr.net/2022/10/31/jubileum-30-ar-med-overvakning-av-forvitringen-pa-sorportalen-til-mariakirken-i-bergen/https://per-storemyr.net/wp-content/uploads/2022/10/mariakirken-sorfasade.jpgmariakirken-sørfasadeMariakirken med sørportalen, som er merket med piler der tidligere vannlekkasjer har kommet fra. Foto: P. Storemyr, oktober 2022https://per-storemyr.net/wp-content/uploads/2022/10/2022-mariakirken-sorportal-storemyr-small.jpg2022-mariakirken-sørportal-storemyr-smallSørportalen til Mariakirken i Bergen i oktober 2022. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/10/2022-mariakirken-sorportal-storemyr.jpg2022-mariakirken-sørportal-storemyrMariakirkens sørportal i oktober 2022. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/10/1999-mariakirken-sorportal-storemyr.jpg1999-mariakirken-sørportal-storemyrMariakirkens sørportal i november 1999. Foto: P. Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/10/1992-mariakirken-sorportal-storemyr-ibenholt.jpg1992-mariakirken-sørportal-storemyr-ibenholtSkadekartlegging av Mariakirkens sørportal i 1992 (P. Storemyr og H. Ibenholt)https://per-storemyr.net/wp-content/uploads/2022/10/1977-mariakirken-sorportal-liden.jpgMariakirken. Eksteriør, portalerMariakirkens sørportal i 1977. Foto: H.-E. Liden (Riksantikvaren)https://per-storemyr.net/wp-content/uploads/2022/10/1900-mariakirken-sorportal-ra-trolig-for-1900.jpgMariakirkenMariakirkens sørportal omkring 1900. Foto: Riksantikvarenhttps://per-storemyr.net/wp-content/uploads/2022/10/1900-mariakirken-sorportal-ra.jpgMariakirkenMariakirkens sørportal omkring 1900. Foto: Riksantikvarenhttps://per-storemyr.net/wp-content/uploads/2022/10/1862-mariakirken-sorportal-christie.jpgMariakirken. OppmålingerMariakirkens sørportal oppmålt av Chr. Christie i 1862 (Riksantikvarens arkiv)2022-10-31T00:40:16+00:00monthlyhttps://per-storemyr.net/2022/10/04/kalkbrenning-i-romania-2000-ar-med-ubrutte-tradisjoner/https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kalkovn-varme.jpgpodeni-kalkovn-varmeOvnen varmerhttps://per-storemyr.net/wp-content/uploads/2022/10/podeni-lesking-hyllestadkalk.jpgpodeni-lesking-hyllestadkalkLesking av hyllestadkalk og brente skjell fra Hyllestad. Det ble undring da vi viste at de brente skjellene kun kan leskes i kokende vann. For den brente kalken i Podeni er nærmest «eksplosiv» og lesker svært lett. https://per-storemyr.net/wp-content/uploads/2022/10/podeni-landskap.jpgpodeni-landskapKulturlandskapet i Podeni – De søndre Karpatene https://per-storemyr.net/wp-content/uploads/2022/10/podeni-landby-tradisjonelt-hus.jpgpodeni-landby-tradisjonelt-husTradisjonelt hus i Podeni. Steinbygd underetasje, tømret over. Alt pusset med leire og kalket https://per-storemyr.net/wp-content/uploads/2022/10/podeni-klc3b8yving-ved.jpgpodeni-klc3b8yving-vedSå må veden kløyves. https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kiln-sketches.jpgpodeni-kiln-sketchesSkisser av kalkovnen i Podeni. Laget av Mihnea Tudor og stil til rådighet av Pirvu Ionica. https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kalkstein-brudd.jpgpodeni-kalkstein-bruddKalksteinsbruddet er ikke store greiene. Men det er en nærmest uutømmelig kilde til kalkbrenning. https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kalkstein.jpgpodeni-kalksteinKalksteinsfjell nær Kalkovnen i Podeni.https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kalkovn-tetting-front.jpgpodeni-kalkovn-tetting-frontEkstra tetting av murverket rundt åpningen med kalkmørtel etter ca. ett døgns brenning. Legg merke til jernstanga med gaffel som brukes til å rette opp veden i ovnen. https://per-storemyr.net/wp-content/uploads/2022/10/podeni-kalkovn-oppreist-ved.jpgpodeni-kalkovn-oppreist-vedDen oppreiste veden brenner lystig i ovnen. 2022-10-05T13:53:50+00:00monthlyhttps://per-storemyr.net/2011/07/08/hunting-with-stone-lines-the-ancient-game-traps-in-egypt-and-nubia/2022-04-04T20:58:15+00:00monthlyhttps://per-storemyr.net/2022/03/19/new-paper-in-new-book-the-ancient-game-traps-across-lower-nubia/https://per-storemyr.net/wp-content/uploads/2022/03/game-trap-aswan.jpggame-trap-aswanTypical game drive with trap formed as a funnel-shaped chute. From the Aswan region. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/03/game_traps_gharb_aswan_per_storemyr-20.jpggame_traps_gharb_aswan_per_storemyr (20)Game drive with associated lookout in the Aswan region. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/03/traps-01.jpgtraps-01Typical game drive with trap formed as a funnel-shaped chute. From the Aswan region. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2022/03/cover-gazelles-dream.jpgcover-gazelles-dreamhttps://per-storemyr.net/wp-content/uploads/2022/03/02_game_traps_lower_nubia_march_012.jpg02_game_traps_lower_nubia_march_012Distribution of the game traps along a 400 km stretch of the Nile in Lower Nubia. Map by Per Storemyr2022-04-01T12:30:20+00:00monthlyhttps://per-storemyr.net/2017/12/12/tusen-ar-med-brytning-av-kleberstein-tok-nettopp-slutt-en-historie-om-mekanisering-og-globalisering-og-om-a-gjenoppdage-gammelt-handverk/https://per-storemyr.net/wp-content/uploads/2017/12/kleberbrudd-grandalen-1918-manual-channeling-ngu2.jpgFra N.S.Beers Kleberstensbrudd,Grandalen ved Otta.ArbeidslagREDNINGEN? Manuell brytning av kleberstein med hakker ved Otta i 1918. Slik brytning foregikk helt opp til 1930-tallet i Norge. Kan man ta denne ganle tradisjonen i bruk igjen? Det er den klassiske metoden for å bryte myk stein – den har vært i bruk for store byggeoppgaver siden de gamle egypternes tid. Fra N.S. Beers klebersteinsbrudd, Grandalen, i drift til 1935. Foto fra NGUs arkivhttps://per-storemyr.net/wp-content/uploads/2017/12/kleberbrudd-grandalen-1918-manual-channeling-ngu1.jpgFra N.S.Beers Kleberstensbrudd,Grandalen ved Otta.ArbeidslagREDNINGEN? Manuell brytning av kleberstein med hakker ved Otta i 1918. Slik brytning foregikk helt opp til 1930-tallet i Norge. Kan man ta denne ganle tradisjonen i bruk igjen? Det er den klassiske metoden for å bryte myk stein – den har vært i bruk for store byggeoppgaver siden de gamle egypternes tid. Fra N.S. Beers klebersteinsbrudd, Grandalen, i drift til 1935. Foto fra NGUs arkivhttps://per-storemyr.net/wp-content/uploads/2017/12/klungen-2000-ps1.jpgklungen-2000-psKLUNGENBRUDDET: Etter arkeologiske utgravinger og prøveuttak med linesaging, ca. 2000. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2017/12/bubakk-1960s-arne-skjolsvold-uio.jpgbubakk-1960s-arne-skjolsvold-uioBUBAKK: Kleberbruddet på Kvikne/Bubakk på 1960-tallet. Her har NDR steinbrytere gjort et dypt kutt inn i alle sporene etter gamle uttak av gryter og kar. Foto: Arne Skjølsvold, fotoarkivet, Kulturhistorisk Museum, Universitetet i Oslohttps://per-storemyr.net/wp-content/uploads/2017/12/steinbrytning-kvikne-ndr-1995.jpgsteinbrytning-kvikne-ndr-1995SPLITTING: Steinhoggerne Atle Elverum og Henning Grøtt deler opp blokk ved hjelp av kiler med blekker i kleberbruddet på Bubakk ved Kvikne i 1995. Dette var et av de aller siste steinuttakene i bruddet. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/12/kalkmangfold1.jpgkalkmangfold1KALKMANGFOLD: Eksperimentell produksjon av kalk på gammelmåten gir et stor mangfold i kvalitet av lesket kalk – noe helt annet enn hva industriell produksjon kan varte opp med. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/12/b_klungen_steinbrudd_eva.jpgB_Klungen_steinbrudd_EvaSTAVSØIENS EKSPERIMENT: Eva Stavsøien tar ut kleber med kanalhogging i kleberbruddet på Klungen i 2011. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2017/12/ostermundigen-schweiz-steinbrecher-altes-handwerk-e1512958251437.jpgostermundigen-schweiz-steinbrecher-altes-handwerkKANALHOGGING: Sandsteinsbrudd i Ostermundigen, nær Bern i Sveits. Kanalhogging på 1950-tallet. Foto: W. Nydegger, i boken «Ostermundigen. Geschichte. Gemeindeentwicklung. Alte Ansichten», av Schmalz, K. L., 1983, utgitt av Einwohnergemeinde Ostermundigen. Les mer om sandstein i Bern https://per-storemyr.net/wp-content/uploads/2017/12/otta-saging-nyseter.jpgotta-saging-nyseterKJEDESAGING: Moderne kjedesaging i Nyseterbruddet ved Otta i 1998. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/12/otta-kleberbrytning-pc3a5-gammelmc3a5ten.jpgOtta-kleberbrytning-på-gammelmåtenGAMMELMÅTEN: Kleberbrytning på gammelmåten i det store Åsåren-bruddet, trolig mellom 1915 og 1930. Foto fra Bjørn Holen/Ingrid Fredheim. Foto gjengitt i boken «Klebereventyret på Bårstad og Sagflaten» av Terje Kleiven, 2013. Se også nettartikkel av Kjetil Voldheim.2022-04-01T12:28:26+00:00monthlyhttps://per-storemyr.net/2016/04/18/gneiss-for-the-pharaoh-geology-of-the-third-millennium-bce-chephrens-quarries-in-southern-egypt/https://per-storemyr.net/wp-content/uploads/2016/04/chephrens-quarry2.jpgchephrens-quarry2Chephren's Quarry, southern Egypt: Quarry sites, sculpture and vessels. Photos by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/04/chephrens-quarry1.jpgchephrens-quarry1Located far south in the Egyptian Western Desert, Chephren's Quarry is the world's oldest large-scale quarry for sculpture and stone vessels. Photo by Per Storemyr2022-03-15T13:00:12+00:00monthlyhttps://per-storemyr.net/2022/02/19/a-brenne-kongens-marmor-fra-marmoroyen-i-bergen/https://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-brent-kalk-silika.jpgmarmorøyen-brent-kalk-silikaBrunlig brent kalk med sintret silika fra kvartsinnholdet i marmoren. Dette vil nok gjøre kalken svakt hydrauliskhttps://per-storemyr.net/wp-content/uploads/2022/02/julebrenning-tittelbilde1.jpgjulebrenning-tittelbilde1https://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-oselver.jpgmarmorøyen-oselverOselveren til Ole Chr. Endresen er lastet med marmorblokk og klar til transport!https://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-marmor-varianter.jpgmarmorøyen-marmor-varianterKongens marmor fra Marmorøyen til brenning: varierende kvalitet, fra helt hvit til båndet rosa, grålig og blålighttps://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-kilespor.jpgmarmorøyen-kilesporStore, hogde kilehull for uttak av marmorblokkhttps://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-forbrent-stein.jpgmarmorøyen-forbrent-steinSterkt forbrent stein (konglomerat?) ved kalkovnenhttps://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen-brenning-1.jpgmarmorøyen-brenning-1Fra Marmorbroen i København og Marmorøyen i Bergen til julekalkbrenning i Hyllestadhttps://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen2.jpgmarmorøyen2Marmorblokk til kalkbrenning er samlet og diskuteres, f.v. Øystein Jansen, Per Storemyr og John Erik Bugge Rasmussen. Foto: Ole Chr. Endresenhttps://per-storemyr.net/wp-content/uploads/2022/02/marmoroyen1.jpgmarmorøyen1Det sentrale marmorbruddet på Marmorøyenhttps://per-storemyr.net/wp-content/uploads/2022/02/lidarkart-marmoroyen.jpglidarkart-marmorøyenLidarkart som viser utbredelsen til bruddet på Marmorøyen og plassering av kalkovn. Modifisert fra hoydedata.no2022-12-19T11:21:12+00:00monthlyhttps://per-storemyr.net/2022/02/20/siste-testbrenning-av-mostermarmor-for-bygging-av-storkalkovn-i-mosterhamn/https://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning-tittel.jpgromjulsbrenning-tittelFerdig brent, glødende kalk er vakker når topplokket av steinplater nettopp er fjernet og temperaturen forstatt nærmer seg 900 graderhttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning8.jpgromjulsbrenning8Vind fra sør og heftig fyring ga i starten nokså røykfylte forhold ved kalkovnene!https://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning7.jpgromjulsbrenning7Den brente kalken sortert i "hvit" og "uren"https://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning6.jpgromjulsbrenning6Når en starter med uttak virker all brentkalken ensfarget. Ved nærmere ettersyn er det her variasjoner mellom hvit og brunlig kalkhttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning5.jpgromjulsbrenning5Heftig brenning med glohaugen dels utenfor fyrkammeret for å bedre på trekkenhttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning4.jpgromjulsbrenning4Vesleovnen fylt med grålig, rosa og hvit marmor fra Mosterhamnhttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning3.jpgromjulsbrenning3Til tross for ruskevær er det nokså behagelig og varmt ved kalkovnenehttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning2.jpgromjulsbrenning2Brenningen har startet og trekkanalene fungerte fint når motvinden ikke var for sterkhttps://per-storemyr.net/wp-content/uploads/2022/02/romjulsbrenning1.jpgromjulsbrenning1Det nærmer seg avslutning når kalken under topplokket er gulglødende2022-02-20T01:50:30+00:00monthlyhttps://per-storemyr.net/2021/12/03/opplaering-i-tradisjonell-kalkbrenning-i-hyllestad/https://per-storemyr.net/wp-content/uploads/2021/11/vesleovnen-opplaeringsbrenning-1.jpgvesleovnen-opplæringsbrenning-1Bent Morten Steinsland fyrer i Vesleovnen.https://per-storemyr.net/wp-content/uploads/2021/11/vesleovnen-opplaeringsbrenning-2.jpgvesleovnen-opplæringsbrenning-2Bent Morten Steinsland er fornøyd med temperaturen i Vesleovnen.2021-12-03T21:12:47+00:00monthlyhttps://per-storemyr.net/2021/12/03/operasjon-dagsverk-2021-tradisjonsbrenning-av-kalk-med-skoleungdom/https://per-storemyr.net/wp-content/uploads/2021/12/diagram-kalkbrenning-utbytte1.pngdiagram-kalkbrenning-utbytte13 år med brenning i Vesleovnen: Statistikk over total brenntid og utbytte.https://per-storemyr.net/wp-content/uploads/2021/12/od-brenning2.jpgod-brenning2Gulglødende kalk markerer at det begynner å nærme seg slutten.https://per-storemyr.net/wp-content/uploads/2021/12/od-brenning1.jpgod-brenning1Ungdommene har fått god fyr på kalkovnen!https://per-storemyr.net/wp-content/uploads/2021/12/tarald-fyller-kalkovn.jpgtarald-fyller-kalkovnFylling av ovnen før brenning.https://per-storemyr.net/wp-content/uploads/2021/12/diagram-kalkbrenning-utbytte2.pngdiagram-kalkbrenning-utbytte23 år med brenning i Vesleovnen: Statistikk over vedforbruk og utbytte.2021-12-03T21:11:28+00:00monthlyhttps://per-storemyr.net/2021/08/06/brenning-av-mosterkalk-pa-12-13-timer-knusing-av-tidligere-rekorder/https://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-1a.jpgvesleovnen-august-21-1ahttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-utbytte-2.pngvesleovnen-utbytte 2Brenntid og utbytte fra relevante kalkbrenninger i Vesleovnen siden 2018. En del av verdiene er anslåtte, men diagrammet viser likevel en tydelig utvikling.https://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-utbytte1.pngvesleovnen-utbytte1Utbytte av brentkalk pr. tidsenhet og som funksjon av vedforbruk. En del av verdiene er anslåtte, men diagrammet viser likevel en tydelig utvikling.https://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-prinsippskisse.jpgvesleovnen-prinsippskissePrinsippskisse av Vesleovnen. Over brennkammeret, som er forlenget med et forkammer for å bedre trekk og kunne fyre med 60 cm vedskier, ligger det ribber av ildfaststein. Disse brukes som underlag for rask konstruksjon av et enkelt hvelv av den samme marmoren som skal brennes. Over hvelvet legges marmoren som skal brennes. De største bitene nederst, der det er varmest, mindre biter oppover. Kalkbrenning krever minst 850 grader for å drive av CO2 i marmoren. For sikre god trekk blir det ved ilegg av marmor bygd inn kanaler i hvert hjørne. Trekken kan reguleres ved å legge på steinplater over kanalene, typisk bak i ovnen – for å «drive» trekken framover. Når gløden i marmorladningen etter 3-4 timer er kommet opp mot toppen legges det suksessivt på marmorplater over marmorbitene, for å holde på varmen. Det bygges også opp en ring av kleberstein rundt toppen for å hindre varmetap, spesielt når det er vind (dette er ikke nødvendig i store ovner). Ved en god brenning vil marmorplatene også bli gjennombrent. Når temperaturen, gløden og trekken i ovnen er utmerket etter ytterligere noen timer, blir toppen av ovnen (unntatt trekkanalene) murt igjen med egnede steinplater og kalkmørtel for å holde enda bedre på varmen, når temperaturene er høye nok til å drive av CO2 fra marmoren. Det er essensielt å «treffe» det riktige tidspunktet for gjenmuring av toppen. Om en gjør det for tidlig vil trekken bli «strupet» og en oppnår ikke høye nok temperaturer for gjennombrenning av all kalken innen rimelig tid. En slik tradisjonell ovn, etter forbilder spesielt i Alpene og på Balkan (og i Sverige, vi har få eller ingen i Norge), vil ha store temperaturforskjeller, nede kan det være over 11-1200 grader, oppe over 900, ved gode brenninger. Fornuftig ilegg av ved er viktig, 3-5 skier av gangen. Det skal alltid legges i med maksimalt med luft mellom skiene, for å sikre god brenning. I en så liten ovn må en legge i ved ca. hvert 10 minutt. Ved rimelig trekk vil det brenne lystig på toppen etter ilegg, flammene går ned når veden brenner ut. Da er det tid for nytt ilegg. Avhengig av trekken (og vedtypen) vil det være nokså mye røyk på toppen rett etter ilegg; denne forsvinner langsomt og erstattes av varmedis. Kull og aske kan bygge seg opp i brennkammeret. Derfor kan det være nødvendig å spa ut dette 2-3 ganger ved brenningene. Men en må spa ut lite av gangen for å ikke få for stort temperaturfall.https://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-14.jpgvesleovnen-august-21-14Uttak av brentkalk krever sortering. Her er en del av topplokket med bare delvis brent marmor. Det kan en se på fargeforskjellen når en knuser opp bitenehttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-13.jpgvesleovnen-august-21-13Den brente kalken etter at hele topplokket er fjernethttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-12.jpgvesleovnen-august-21-12Loggboka føres hver time. Vi måler ikke lengre temperatur, men styrer brennforløpet med observasjon av glød, flammer, trekk, røyk og soting, samt testlesking av biter vi tar ut fra toppen mot slutten av brenninghttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-11.jpgvesleovnen-august-21-11Gløden er god nok til å starte forsiktig tildekkinghttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-10.jpgvesleovnen-august-21-10Enda bedre glød, mer tildekking og ring av kleberstein rundt toppen for å hindre varmetaphttps://per-storemyr.net/wp-content/uploads/2021/08/vesleovnen-august-21-9.jpgvesleovnen-august-21-9Hvelvet er bygd og fylling av marmor kan starte2021-08-06T14:08:34+00:00monthlyhttps://per-storemyr.net/2021/05/20/fastings-minde-i-bergen-planlagt-vedlikehold-med-vestlandsk-tradisjonskalk-etter-en-hard-vinter/https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-9.jpgfastings-minde-mai-2021-9Nær ferdig behandlet mur med kalkreparasjoner og hvitting. Det gjenstår et strøk eller to med hvitting i de nærmeste delenehttps://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-8.jpgfastings-minde-mai-2021-8Skurte skadeområder før hvitting, litt mørkere enn omgivelsene på grunn av fukten i mørtelenhttps://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-7.jpgfastings-minde-mai-2021-7Feit kalkmørtel blandet som hotmix er kastet på de frostskadde områdene og skures hardt inn med kost.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-6.jpgfastings-minde-mai-2021-6Kjemikaliet fenolftalein er en pH-indikator egnet for å vise om en kalkmørtel har karbonatisert. Har den bare delvis karbonatisert, så blir fargen lilla. Dette skjer ofte når herdeforholdene den første vinteren ikke har vært gode nok, som ved for mye fukt – og frost.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-5.jpgfastings-minde-mai-2021-5Hovedårsaken til frostskadene er et vannbord som ikke rekker langt nok ut. Men her har UiB tatt grep og installert en forlengelse i blikk våren 2021.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-4.jpgfastings-minde-mai-2021-4Et frostskadd parti. Puss- og fugemørtelen under slemming og hvitting fortsatt fast og ganske fin. Den pulveriserer ikke.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-3.jpgfastings-minde-mai-2021-3Det frostskadde partiet på grunnmuren på Fastings Minde i mai 2021https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-mai-2021-2.jpgfastings-minde-mai-2021-2Fastings Minde i Bergen: Et nyrestaurert hus bygd på sent 1700-tall og 1800-tallet, med en svær grunnmur behandlet med vestlandsk tradisjonskalk i 2020. Berit Bruvik utfører vedlikehold i mai 2021.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-jan-2021-2.jpgfastings-minde-jan-2021-2Tilsvarende islinse som i bildet over, her over hvittingen på Fastings Minde.https://per-storemyr.net/wp-content/uploads/2021/05/fastings-minde-jan-2021-1.jpgfastings-minde-jan-2021-1Litt vanskelig å se, men bildet viser en islinse under hvitting, fotografert ved en frostepisode i januar 2021. Isen har sprengt hvittingen og deler av slemmingen vekk.2021-05-21T09:51:35+00:00monthlyhttps://per-storemyr.net/2021/05/09/de-bla-flammers-natt-brenning-av-smillamarmor-i-hyllestad/https://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-2.jpgvesleovnen-2021-4-30-2Opphogging av 160 kg marmor til brenning. Det tar lengre tid enn en skulle tro… Vesleovnen (hvit) og Storovnen i bakgrunnenhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-1.jpgvesleovnen-2021-4-30-1Etter 17 timers kalkbrenning: De blåfiolette flammene som tradisjonelt markerer slutten på en kalkbrenninghttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-statistikk-2.pngvesleovnen-statistikk-2Utbytte av gjennombrent kalk pr. time og pr. kilo ved for 11 kalkbrenninger i Vesleovnen. To brenninger av skjellkalk er ikke tatt med. Brenning nr. 5 ble avbrutt etter 9 timer. Det er interessant å se at en likevel fikk et høyt utbytte etter så kort tid. Det viser hvor raskt det går å brenne kalk i de nederste deler av ovnen, mens det tar lengre tid å få varmen opp på over de nødvendige 850 grader i de øvre deler. Vedforbruket er ikke helt nøyaktig, det er estimert, men diagrammet viser likevel klare tendenserhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-statistikk-1.pngvesleovnen-statistikk-1Utbytte av ulike gjennombrente kalker og brenntid for 11 kalkbrenninger i Vesleovnen. To brenninger av skjellkalk er ikke tatt med. Brenning nr. 5 ble avbrutt etter 9 timer. Det er interessant å se at en likevel fikk et høyt utbytte etter så kort tidhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-temperatur-diagram.pngvesleovnen-2021-4-30-temperatur-diagramRekonstruert temperaturdiagram. Vi hadde problemer med IR-måleren og har måttet rekonstruere temperaturutviklingen (se beskrivelse i diagrammet). Legg merke til hvordan det var vanskelig å få opp temperaturen bak i ovnen før toppen ble murt helt igjen foranhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-16.jpgvesleovnen-2021-4-30-16Storovnen i Kvernsteinsparken hvittet med ett strøk Smillakalk. Hvit og fin. Senere følger flere strøkhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-15.jpgvesleovnen-2021-4-30-15Slemming av Smillakalk. Vi ser tydelig alle urenhetene. Disse synker delvis til bunns i «malebøtta», men likevel vil det være mange slike mineralkorn som blir del av slemmingen på veggenhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-14.jpgvesleovnen-2021-4-30-14Lesking av Smillakalken. Som vi ser er kalken brun på overflaten, men blir hvit og fin ved leskinghttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-13.jpgvesleovnen-2021-4-30-132-3 kg av de største steinene bak i ovnen hadde ubrente kjerner på grunn av den dårlige trekken vi hadde bak i ovnen over lang tidhttps://per-storemyr.net/wp-content/uploads/2021/05/vesleovnen-2021-4-30-12.jpgvesleovnen-2021-4-30-12Toppen av ovnen er forsiktig fjernet og uttak av brentkalk fortsetter2021-05-09T13:14:17+00:00monthlyhttps://per-storemyr.net/2021/04/25/rekordrask-kalkbrenning-i-vesleovnen-i-hyllestad/https://per-storemyr.net/wp-content/uploads/2021/04/temperaturdiagram-vesleovnen-17-4-2021.pngtemperaturdiagram-vesleovnen-17-4-2021Veiledende temperaturdiagram for kalkbrenningenhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-11.jpgkalkbrenning-april-21-11Ei 60 liters tønne med brent Mosterkalk og to 12 liters bøtter med brent Smillakalk fra hvelvet i ovnenhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-10.jpgkalkbrenning-april-21-10Ovnen er kjølnet ned og på søndag kunne vi ta ut den brente kalkenhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-9.jpgkalkbrenning-april-21-9Kalbrenningen er ferdig. Det gløder godt i toppen, men de øverste steinene er i ferd med å kjøles ned.https://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-8.jpgkalkbrenning-april-21-8Alltid god stemning ved kalkovnen når kvelden og natten siger på!https://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-7.jpgkalkbrenning-april-21-7Lotta kalker hele ovnen fra testlesking av en liten bit delvis gjennombrent kalk tatt fra toppen av ovnenhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-6.jpgkalkbrenning-april-21-6Veden skal legges i ovnen med god avstand slik at en sikrer oksygentilførselenhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-5.jpgkalkbrenning-april-21-5Ovnen er fyrt opp og etter noen timer er toppen dekket delvis til. Flammene slår godt gjennomhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-4.jpgkalkbrenning-april-21-4Marmorladningen er lagt inn, løst pakket og det er brent litt for å tørke marmor og ovnhttps://per-storemyr.net/wp-content/uploads/2021/04/kalkbrenning-april-21-3.jpgkalkbrenning-april-21-3Hvelvet lagt opp av Smillamarmor, merk stokker for trekk-kanaler2021-04-25T01:05:51+00:00monthlyhttps://per-storemyr.net/2021/04/16/mangfold-trippel-tradisjonskalk-til-kalkarbeider-i-et-gammelt-trehus-i-bergen/https://per-storemyr.net/wp-content/uploads/2021/04/ytre-markeveien-bergen3.jpgytre-markeveien-bergen3Tradisjonelt kalket mur er fint i et gammelt hus! Foto: Berit Bruvikhttps://per-storemyr.net/wp-content/uploads/2021/04/ytre-markeveien-bergen1.jpgytre-markeveien-bergen1Murene er ferdig spekket i fugene og har fått et pusslag av beige Hyllestadkalk. Foto: Berit Bruvikhttps://per-storemyr.net/wp-content/uploads/2021/04/ytre-markeveien-bergen2.jpgytre-markeveien-bergen2Utsøkt arbeid med tradisjonskalk i et gammelt hus. Foto: Berit Bruvikhttps://per-storemyr.net/wp-content/uploads/2021/04/berit-bruvik.jpgberit-bruvikAnsvarlig for kalkarbeidet Berit Bruvik. Foto: Per Storemyr2021-04-16T22:40:53+00:00monthlyhttps://per-storemyr.net/2021/01/03/julekalkbrenning-for-fortidsminneforeningen-et-bidrag-til-bygningsvernets-okologi/https://per-storemyr.net/wp-content/uploads/2021/01/smilla-marmor-torbjorn4.jpgsmilla-marmor-torbjørn4Julekalkbrenning i Hyllestad: Fra hogging av marmor i gamle Smilla kalkverk, gjennom stemningsfull brenning til hvit kalkkunst på Smillamarmoren, signert Torbjørn Løland. Fotos: Torbjørn Løland og Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/julebrenning20.jpgjulebrenning20Svært god glød i oven allerede etter få timer. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/lillingstonheimen1.jpgLillingstonheimen1Lillingstonheimens fasade mot Dalsfjorden. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/lillingstonheimen3.jpgLillingstonheimen3Vakre Lillingstonheimen sett inn i hagen fra sør. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/lillingstonheimen2.jpgLillingstonheimen2Alexander sjekker grunnmurene. Det er helt klart at de er veldig slitne og at noe må gjøres. Svaret er kalk! Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/julebrenning14.jpgjulebrenning14Lesking av kalken. Vi ser at den er hvit under et ytre, brulig sjikt (som kanskje kommer fra tjærestoffer i veden? og fra litt oksidert jernsulfid i steinen?). Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/julebrenning13.jpgjulebrenning13https://per-storemyr.net/wp-content/uploads/2021/01/julebrenning11.jpgjulebrenning11Ferdig lesket, hvit Smillakalk. Vi ser mange små mørke korn. Dette er mineraler som (brent) glimmer og amfibol; Smillakalk er uren - og disse mineralene vil gi kalken et "tradisjonelt preg". Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/julebrenning10.jpgjulebrenning10Uttak av den brente marmoren fra ovnen. Kalken har holdt seg godt og er ikke mye "forsukret" av de høye temperaturene. Dessuten er den blå fargen fullstendig borte. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2021/01/julebrenning15.jpgjulebrenning15Festmiddag i Storehuset! Foto: Per Storemyr2021-01-03T03:18:44+00:00monthlyhttps://per-storemyr.net/2020/12/17/rock-art-and-red-coated-bedrock-in-alta-arctic-norway/https://per-storemyr.net/wp-content/uploads/2020/12/red-coated-rocks-alta.jpgred-coated-rocks-altaKarin by one of the famous rock art sites at Hjemmeluft in Alta. Presently the rock art is located on cleared and cleaned, dull grey bedrock high up in the terrain, but originally it would have been made on strongly red-coloured rock along the seashore. Illustration: Per Storemyr2020-12-17T21:57:18+00:00monthlyhttps://per-storemyr.net/2020/12/04/om-soknakrossen-pa-oya-sokn-i-rogaland-steinkrossen-kom-nok-fra-hyllestad/https://per-storemyr.net/wp-content/uploads/2020/12/birkelid-sokn-kross.jpgbirkelid-sokn-krossUtdrag fra Fridtjov Birkelis beskrivelse av korset, se https://www.nb.no/nbsok/nb/6aacfbd4cc7d7db0a78a45b9f372a758?index=1#209https://per-storemyr.net/wp-content/uploads/2020/12/sokn-stump-kross.jpgsokn-stump-krossStumpen av Sonkakrossen. En lavbevokst stein i fremkant, ikke langt fra ei svær gravrøys fra bronsealderen. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/sokn-kross-detalj.jpgsokn-kross-detaljEt litt uskarpt nærbilde av stumpen av Soknakrossen. Vi ser mørke granater med lys glimmer omkring, og nede til venstre kan vi ane mulig kyanitt. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/soknakrossen-rekonstruksjon-kopie-1.jpgsoknakrossen-rekonstruksjon KopieSlik kan «Soknakrossen» kanskje ha sett ut, ved ei svær gravrøys fra bronsealderen. Illustrasjon: Per Storemyr2020-12-06T02:13:59+00:00monthlyhttps://per-storemyr.net/2020/12/06/steinmysteriet-i-stavanger-domkirke-hvor-kommer-klebersteinen-i-koret-fra/https://per-storemyr.net/wp-content/uploads/2020/12/kart-kleberbrudd-vestre-amoy.jpgkart-kleberbrudd-vestre-åmøyKart over kleberbruddet på Vestre Åmøy. Grunnkart: Lidardata fra https://hoydedata.no/LaserInnsyn/. Innfelt: Geologisk kart over området, fra http://geo.ngu.no/kart/berggrunn_mobil/https://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd6.jpgvestre-åmøy-kleberbrudd6En del av bruddet på Vestre Åmøy har en grønnlig skifer. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd5.jpgvestre-åmøy-kleberbrudd5Bruddet på Vestre Åmøy ligger rett ved fjæra. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd4.jpgvestre-åmøy-kleberbrudd4I fjæra ved bruddet på Vestre Åmøy finner en mange fragmenter av hogd kleber. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd3.jpgvestre-åmøy-kleberbrudd3Slik ser den typiske klebersteinen på Vestre Åmøy ut: Skifrig, nokså mørk og med brune karbonatårer. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd2.jpgvestre-åmøy-kleberbrudd2Fra skrottippene i kleberbruddet på Vestre Åmøy. En liten del er åpnet av andre enn meg. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/vestre-amoy-kleberbrudd1.jpgvestre-åmøy-kleberbrudd1En liten skrent i kleberbruddet på Vestre Åmøy. Det er mulig man har brutt under denne "helleren". Synlig stein er gneis. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/stavangerkleber1.jpgstavangerkleber1Stavangerkleber på østveggen i koret i Stavanger domkirke. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/stavangerkleber.jpgstavangerkleber"Stavangerkleber" på nordfasaden av koret på Stavanger domkirke. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/12/stavanger-domkirke-klorittskifer.jpgstavanger-domkirke-klorittskiferDen romanske delen av Stavanger domkirke har klorittskifer fra Ertenstein på Rennesøy i bl.a. portaler. Foto: Per Storemyr2020-12-06T01:41:46+00:00monthlyhttps://per-storemyr.net/2020/10/04/hyllestad-millstone-quarry-landscape/https://per-storemyr.net/wp-content/uploads/2020/10/hyllestad-millstone-poster-web-heading.jpghyllestad-millstone-poster-web-heading2020-10-04T21:41:26+00:00monthlyhttps://per-storemyr.net/2020/06/19/ny-rapport-en-studie-i-saltforvitring-nar-klimaet-forandrer-seg-albanustarnet-pa-selja-kloster-2016-2020/https://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-rapport.jpgselja-forvitring-rapporthttps://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-5.pngselja-forvitring-5Forenklet fasediagram for saltsystemene natriumsulfat og natriumklorid, viktige salter i tårnet. Fra slike diagrammer kan vi analysere saltenes opptreden i ulike inneklimaforholdhttps://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-4.jpgselja-forvitring-4Saltforvitring av metaolivinstein (omvandlet olivinstein) inne i Albaustårnethttps://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-3.jpgselja-forvitring-3Er det slik vi vil se Albanustårnet i fremtiden - hvitkalket ut mot havet?https://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-2.jpgselja-forvitring-2Foto av klosterruinene og Albanustårnet i 1866, det eldste fotoet av anlegget vi kjenner til. Anlegget er praktisk talt «ei steinrøys». Fotoet er tatt av Marcus W. Noodthttps://per-storemyr.net/wp-content/uploads/2020/06/selja-forvitring-1.jpgselja-forvitring-1Det forvitrer sterkt fra veggene inne i Albanustårnet på Selja2020-06-19T16:14:13+00:00monthlyhttps://per-storemyr.net/2020/03/12/selja-kloster-pa-leit-etter-kildene-til-den-beste-muresteinen/https://per-storemyr.net/wp-content/uploads/2020/03/fra-selja-til-skorbc3b8en.jpgfra-selja-til-skorbøenSkårbø under fjellene på Stadlandet, sett fra Selja kloster. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/terrassen-fc3b8r-restaurering.jpgSelje klosterDen store terrassen før restaureringen på 1930-tallet. Foto: Riksantikvarenhttps://per-storemyr.net/wp-content/uploads/2020/03/steingjerder-liset.jpgsteingjerder-lisetSteingjerder og ei bu i fjæra på Liset ved Selje. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8-trappebrudd.jpgskorbø-trappebruddMulig steinbrudd på Skårbø. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8ren-1968-flyfoto.jpgskorbøren-1968-flyfotoSteinkonstruksjoner sett fra lufta: Skårbø i 1968. Foto: Norge i bilderhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8en-strandlinje1.jpgskorbøen-strandlinje1https://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8en-hellebrudd2.jpgskorbøen-hellebrudd2Hellebrudd på Skårbø. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8en-hellebrudd1.jpgskorbøen-hellebrudd1Hellefragmenter så langt øyet kan se, med gården Skårbø i bakgrunnen. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8en-hellebrudd.jpgskorbøen-hellebruddHellebrudd i fjæra på Skårbø. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2020/03/skorbc3b8en-fjc3b8s.jpgskorbøen-fjøsEt lite steinbygd fjøs på Skårbø. Foto: Per Storemyr2020-03-13T20:55:47+00:00monthlyhttps://per-storemyr.net/2019/11/24/partner-in-the-borgund-kaupang-project-on-the-rise-and-fall-of-a-medieval-town/https://per-storemyr.net/wp-content/uploads/2019/11/borgund-marble.jpgborgund-marbleThe coarse-grained, white marble used at Borgund. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-soapstone.jpgborgund-soapstoneSoapstone was used at Borgund in the Gothic period. Doog-tooth ornamentation. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/stad-from-the-air.jpgstad-from-the-airFlying from Bergen to Ålesund, over the wildest seafaring route in Norway - Stad. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-marble-romanesque-window.jpgborgund-marble-romanesque-windowMarble used at Borgund Kaupang. Part of a Romanesque window. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-church.jpgborgund-churchThe current Borgund church. The core of the church is medieval. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-medieval-museum.jpgborgund-medieval-museumThe medieval museum at Borgund, part of Stiftinga Musea på Sunnmøre. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-sunnmorsalpene.jpgborgund-sunnmorsalpeneThe Borgund site, with the magificent Sunnmøre Alps in the background. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-museum.jpgborgund-museumInside the medieval museum at Borgund, with original floor planks from houses in the town. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/11/borgund-kaupang-website.jpgborgund-kaupang-websiteVisit the Borgund Kaupan Project's websitehttps://per-storemyr.net/wp-content/uploads/2019/11/katavaagen-borgund.jpgkatavaagen-borgundKatavågen in Borgund, the place of a once fine medieval town. Photo by Per Storemyr2019-11-29T09:03:13+00:00monthlyhttps://per-storemyr.net/2019/04/28/firmaet-mitt-er-na-del-av-fabrica-no-my-company-is-now-part-of-fabrica-no/https://per-storemyr.net/wp-content/uploads/2019/04/portretter-fabrica3.jpgportretter-fabrica3Partners in FABRICA: Vegard Røhme, Per Storemyr and Morten Stigehttps://per-storemyr.net/wp-content/uploads/2019/04/fabrica-forside.jpgfabrica-forsideOur new website of fabrica.no2019-09-06T11:55:47+00:00monthlyhttps://per-storemyr.net/2018/08/17/tjenester-for-kulturminnevernet-hva-gjor-en-geoarkeolog-for-steinbygninger-steinbrudd-og-bergkunst/https://per-storemyr.net/wp-content/uploads/2018/08/rosenkrantztaarnet-med-jansen.jpgrosenkrantztaarnet-med-jansenBergen! Min nåværende nesten «hjemby». Rosenkrantztårnet, på oppdrag fra Statsbygg/Forsvarsbygg for å lage restaureringsplaner. Gode kollega Øystein Jansen vet mer om gammel stein i Bergen enn jeg. En telefon, og så er vi på stillaset sammen, høyt over Vågen, for å «finne ut av det». Foto: Ann Meeks (2016)https://per-storemyr.net/wp-content/uploads/2018/08/kalkbrenning-intervju-nrk.jpgkalkbrenning-intervju-nrkKalkbrenning i Hyllestad, i egenbygd, tradisjonell ovn, sammen med et stort antall lokale dugnadsfolk. Intervju med «NRK Museum». Foto: Franziska Rüttimann (2017)https://per-storemyr.net/wp-content/uploads/2018/08/kaafjord-bergkunst-nrk.jpgkaafjord-bergkunst-nrkVeldig glad for at NRK skrev rett tittel: Fra arbeid med de gamle helleristningene på Kåfjordfeltet ved Alta. Foto: Skjermdump NRK (2014).https://per-storemyr.net/wp-content/uploads/2018/08/i-wadi-el-hudi.jpgi-wadi-el-hudiEgypt. På let i de 4000 år gamle ametystgruvene i ørkenen. I dette tilfellet sammen med et California State University, på Wadi el-Hudi Expedition. Foto: Carly Pope (2016)https://per-storemyr.net/wp-content/uploads/2018/08/brynesteinsbrudd-eidsborg.jpgbrynesteinsbrudd-eidsborgBade i brynestein. En «hardrock» geoarkeolog i et av Norges viktigste steinbrudd: Brynesteinsbruddet ved Eidsborg i Telemark. Mer enn 1000 års brynesteinsindustri! Foto: Tarald Storemyr (2018)2019-04-08T07:42:53+00:00monthlyhttps://per-storemyr.net/2019/01/02/happy-new-year-to-clients-partners-and-followers-with-photos-from-work-and-excursions-in-2018/https://per-storemyr.net/wp-content/uploads/2019/01/limeburning-romania-2018.jpglimeburning-romania-2018Learning traditional limeburning in Romania, together with Terje Berner. Excursion as part my work for Millstone Park. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/stavanger-cathedral-south-tower-2018.jpgstavanger-cathedral-south-tower-2018Inside the South Tower at Stavanger Cathedral. In Stavanger I aid Archaeological Museum at the University with their work on the great restoration that is ongoing. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/stavanger-cathedral-2018.jpgstavanger-cathedral-2018Stavanger Cathedral. In Stavanger I aid Archaeological Museum at the University with their work on the great restoration that is ongoing. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/selje-looking-for-stone-quarries-2018.jpgselje-looking-for-stone-quarries-2018Looking for stone quarries for Selja monastery at the west coast of Norway, supported by Selje municipality and the Directorate for Cultural Heritage. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/selja-quay-2018.jpgselja-quay-2018The quay at Selja. This is the place I have regularly landed for 8 years now, in various work supported by Selje municipality and the Directorate for Cultural Heritage. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/selja-mortar-course-2018.jpgselja-mortar-course-2018Practical course on using traditional lime mortar at Selja. Mixing mortar (hot mix). Supported by Selje municipality and the Directorate for Cultural Heritage. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/selja-monastery-2018.jpgselja-monastery-2018Selja monastery ruins in 2018. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/piemonte-traditional-stone-roof-2018.jpgpiemonte-traditional-stone-roof-2018Excursion to look at traditonal stone building in Piemonte, Italy. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/hyllestad-sherpa-stone-work-2018.jpghyllestad-sherpa-stone-work-2018Impressed by the way Nepalese sherpa stone workers build a staircase in Hyllestad, Western Norway. Only manual work. Just looking. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2019/01/hyllestad-limekiln-repair-workshop-2018.jpghyllestad-limekiln-repair-workshop-2018As an associate professor with museum Millstone Park in Hyllestad, I organised much work on traditional lime burning in 2018. Here from a national event on rebuilding a lime kiln. Photo by Per Storemyr2019-01-02T07:41:48+00:00monthlyhttps://per-storemyr.net/2018/11/10/burning-sea-shells-to-make-quicklime/https://per-storemyr.net/wp-content/uploads/2018/11/2018-storemyr-burning-sea-shells-poster.jpgPowerPoint-presentasjonPoster on burning sea shells to make quicklimehttps://per-storemyr.net/wp-content/uploads/2018/11/burning-sea-shells-hyllestad.jpgburning-sea-shells-hyllestadBurning seashells - scallop - to make lime wash and mortar in the small kiln in Millstone Park2018-11-11T00:58:28+00:00monthlyhttps://per-storemyr.net/2018/10/30/novel-micro-images-of-lime-mortar-destruction-by-frost-weathering/https://per-storemyr.net/wp-content/uploads/2018/10/millstone-park-limekiln-unhardened-lime-mortar.jpgmillstone-park-limekiln-unhardened-lime-mortarPoorly hardened lime mortar (brownish) at the Millstone Park limekiln in October 2018, below a light layer of hardened/carbonised at the surface. The mortar was applied in August 2018. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/millstone-park-limekiln-scaling-mortar1.jpgmillstone-park-limekiln-scaling-mortar1Close-up of scales at the lime mortar on the Millstone Park limekiln. The scale are 1-3 mm thick. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/millstone-park-limekiln-scaling-mortar.jpgmillstone-park-limekiln-scaling-mortarScaling/exfoliation of mortar applied in August 2018 at the Millstone Park limekiln. After frost in late October 2018. Width of image c. 40 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/millstone-park-limekiln-october-2018.jpgmillstone-park-limekiln-october-2018The north side of the Millstone Park limekiln. The roof above protects most of the kiln, but not the northern side, which is regularly exposed to driving rain. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/millstone-park-limekiln-ice-mortar-surface.jpgmillstone-park-limekiln-ice-mortar-surfaceIce-formation (dark grey) on the surface of mortar joints at the Millstone Park limekiln, indicating excess moisture in the masonry. Width of image c. 15 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/frost-heaving-ice-whiskers-soil-millstone-park.jpgfrost-heaving-ice-whiskers-soil-millstone-parkIce whisker growth in a soil profile in Millstone Park. Lifting the uppermost part of the soil. Just like in the lime mortar at the nearby limekiln. Photo by Per Storemyr.https://per-storemyr.net/wp-content/uploads/2018/10/dsc_2196.jpgMinute ice whiskers “lifting” scales off the surface of mortars at the Millstone Park limekilnMinute ice whiskers “lifting” scales off the surface of mortars at the Millstone Park limekiln. Whisker size c. 2 mm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/10/dsc_2195.jpgMinute frost heaving in lime mortarMinute frost heaving in lime mortar, hardly photographed before. The ice crystal lifting the mortar flake at the centre is about 2 mm high. Note much ice below other flakes. Photo by Per Storemyr2018-10-30T23:12:01+00:00monthlyhttps://per-storemyr.net/2018/01/08/burning-the-beaches-happy-new-year-from-the-faroe-islands/https://per-storemyr.net/wp-content/uploads/2018/01/faroe-islands-happy-new-year-from-storemyr1.jpgfaroe-islands-happy-new-year-from-storemyr1https://per-storemyr.net/wp-content/uploads/2018/01/faroe-islands-happy-new-year-from-storemyr.jpgfaroe-islands-happy-new-year-from-storemyrHvitanes "White Cape". Just to the north of capital Torshavn at the Faroes. Grand sea shell deposits that were, presumably, used for lime burning already in the Middle Ages. Photo: Per Storemyr2018-09-29T14:34:03+00:00monthlyhttps://per-storemyr.net/2018/02/09/taken-by-the-frost-the-beauty-and-destructive-force-of-ice-growth-on-historic-masonry/https://per-storemyr.net/wp-content/uploads/2018/02/frost-kiln8-small-featured.jpgfrost-kiln8-small-featuredhttps://per-storemyr.net/wp-content/uploads/2018/02/frost-heaving2.jpgfrost-heaving2Frost heaving I: A lens of thick ice needles growing just below the surface in a soil profile, lifting the upper part. Moisture for the ice growth is provided from the ground below. In Hyllestad, Norway. Width of image c. 10 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/frost-heaving1.jpgfrost-heaving1Frost heaving II: A sturdy lens of thick ice needles growing below a stone slab in a soil profile, lifting the stone. Moisture for the ice growth is provided from the ground below. In Hyllestad, Norway. Width of image c. 10 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/salt1ebg.jpgsalt1ebgPorous “crusts” of salt: A growing mass of salt, including whiskers and needles, has lifted and destroyed lime plaster and limewash. Archbishop’s Palace, Trondheim, Norway. Width of image c. 3 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/nidaros-whitefrost.jpgnidaros-whitefrostWhite frost I: Nidaros cathedral “painted” by white frost as mild, humid weather broke a cold period back in the 1990s. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/nidaros-icicles.jpgnidaros-iciclesIcicles from string cources: A form of ice very normal at historic buildings. South transept, Nidaros Cathedral, Trondheim, Norway in the 1990s. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/icecrystals-limekiln3.jpgicecrystals-limekiln3At night: A lens of ice (middle), now thawing, has broken a layer of limewash on stone. Lime kiln at Hyllestad, Western Norway. Width of image c. 5 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/frost-weathering-limekiln-after.jpgfrost-weathering-limekiln-afterNext day: No sign of ice, just a small heap of broken pieces of light brown limewash that covered the stone above less than 24 hours ago. You wouldn’t know what happened if you weren’t there at night. Lime kiln at Hyllestad, Western Norway. Width of image c. 40 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/frost-kiln10-small.jpgfrost-kiln10-smallMinute ice whiskers I: Very small ice whiskers growing on lime plaster, creating light-coloured, circular scars in the plaster. Nothing serious in this case, but repeated a hundred times it will destroy the surface. Imagine a painted surface! Masonry of limekiln in Hyllestad, Western Norway. Width of image c. 1 cm. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/02/frost-kiln8-small.jpgfrost-kiln8-smallThe beautiful micro-world of ice: Whiskers, a peculiar form of ice, growing from tiny fissures on lime plaster at Hyllestad, Western Norway. Width of image c. 2 cm. Photo by Per Storemyr2018-08-18T21:06:16+00:00monthlyhttps://per-storemyr.net/2018/07/27/the-limekiln-at-hyllestad-western-norway-rebuilding-a-new-historic-kiln-for-burning-lime/https://per-storemyr.net/wp-content/uploads/2018/07/symposium-2018-ombygging-kalkovn-hyllestad-1.jpgsymposium-2018-ombygging-kalkovn-hyllestad-12018-10-28T14:05:29+00:00monthlyhttps://per-storemyr.net/2018/05/12/historien-om-et-saghus-i-gudbrandsdalen-produksjon-av-kleberstein-som-ildfaststein-til-smelteovner/https://per-storemyr.net/wp-content/uploads/2018/05/soapstone-quarry-schwuyler-va-1.jpgsoapstone-quarry-schwuyler-va-1Klebersteinsbrudd i Schuyler, Virginia ca. 1915. Foto: Holsinger, Rufus W, nå i University of Virginia Library.https://per-storemyr.net/wp-content/uploads/2018/05/us16617421-furnace.jpgUS16617421-furnaceTegning av patentert smelteovn for gjenvinning av kjemikalier fra avfall i cellulosefabrikkene. US Patent no. US1661742 (Adolph W. Waern, 1928). «Skallet» i ovnen er i hovedsak laget av kleberstein satt i betong.https://per-storemyr.net/wp-content/uploads/2018/05/soapstone-factory-schwuyler-va-1.jpgsoapstone-factory-schwuyler-va-1Klebersteinsfabrikk I Schuyler, i hallen der man produserte vaskeservanter, ca. 1915. Foto: Holsinger, Rufus W, nå i University of Virginia Library.https://per-storemyr.net/wp-content/uploads/2018/05/snitt-smelteovn-cellulose-fransk-sagflaten.jpgsnitt-smelteovn-cellulose-fransk-sagflatenKonstruksjonstegning til en del av en smelteovn for gjenvinning av kjemikalier fra avfall i cellulosefabrikkene. Slike tegninger var utgangspunktet for tilskjæring av blokker i saghuset på Sagflaten. Fransk ovn, trolig omkring 1950. Bruk av kleberblokker er markert med rødt; ellers dreier det seg om ildfast tegl (gult), betong (grønt) og ildfast grus (blått). Fra arkivet til gamle Østlandske Stenexport, avfotografert av Kjell Voldheim og gjengitt med tillatelse.https://per-storemyr.net/wp-content/uploads/2018/05/masovn.jpgmasovnSnitt gjennom idealisert, eldre masovn av vallonsk type, tegnet av Kristin Røgeberg (se om masovn på lokalhistoriewiki.no). a) pipa, b) stellstein, c) bakmur, d) sandfylling, e) gråstein, f) leire, g) blåsebelg.https://per-storemyr.net/wp-content/uploads/2018/05/kleberverksted-otta.jpgkleberverksted-ottaKleberverkstedet til ingeniør Otto Dahl, Otta sentrum omkring 1900, et av de flere verkstedene i distriktet i eldre tider. Foto: Hans H. Lie, Maihaugen. Fra Digitalt Museum, lisens CC BY-NC 4.0https://per-storemyr.net/wp-content/uploads/2018/05/kleber-saghuset-sagflaten17.jpgkleber-saghuset-sagflaten17Saghuset på Sagflaten sett fra skrottippen nord for huset. Foto: Per Storemyr (2018)https://per-storemyr.net/wp-content/uploads/2018/05/kleber-saghuset-sagflaten16.jpgkleber-saghuset-sagflaten16Ildfaststein i kleber i Saghuset på Sagflaten. Disse var ment for celluloseindustrien, men ble liggende… Foto: Per Storemyr (2018)https://per-storemyr.net/wp-content/uploads/2018/05/kleber-saghuset-sagflaten12.jpgkleber-saghuset-sagflaten12Kaffepause på skrottippen til saghuset på Sagflaten, Kjell Voldheim (t.v.) og Torbjørn Løland. Foto: Per Storemyr (2018)https://per-storemyr.net/wp-content/uploads/2018/05/kleber-saghuset-sagflaten10.jpgkleber-saghuset-sagflaten10Saga til Einar Sagflaten… Foto: Per Storemyr (2018)2018-05-12T01:38:15+00:00monthlyhttps://per-storemyr.net/2018/01/27/the-worlds-northernmost-medieval-marble-church/https://per-storemyr.net/wp-content/uploads/2018/01/gildeskaal-marble.jpggildeskaal-marbleThis is the impure Gildeskål marble. Photo by Pr Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/nidaros-marble-column-cathedral.jpgnidaros-marble-column-cathedralNidaros Cathedral in Trondheim: Marble columns. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/gildeskaal3.jpggildeskaal3Marble beach. At Gildeskål in Northern Norway. Photo by Per Storemyr.https://per-storemyr.net/wp-content/uploads/2018/01/gildeskaal2.jpggildeskaal2Marble arch above the choir window at Gildeskål church in Northern Norway. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/gildeskaal1.jpggildeskaal1Gildeskål medieval marble church (low left). Far up in Northern Norway. With the Atlantic Ocean as the nearest neighbour. Photo by Per Storemyr2018-01-29T15:55:27+00:00monthlyhttps://per-storemyr.net/2014/11/20/marmoren-i-gildeskal-gamle-kirke-i-nordland-grubling-om-en-middelalderkirke-langs-nordvegen/2018-01-26T22:32:59+00:00monthlyhttps://per-storemyr.net/2018/01/12/frostforvitring-pa-kulturminner-bilder-av-et-fenomen-fa-har-dokumentert/https://per-storemyr.net/wp-content/uploads/2018/01/icecrystals-limekiln4.jpgicecrystals-limekiln4Utsprengt bit av puss med islinse på baksiden, 7. januar 2018. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/icecrystals-limekiln3.jpgicecrystals-limekiln3Utsnitt av bildet over: Islinse bak utsprengt flak av slemming 7. januar 2018. Bildebredde ca. 10 cm. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/icecrystals-limekiln2.jpgicecrystals-limekiln2Sterk forvitring på en del kalkovnen mellom 3. og 7. januar 2018. Slemming og puss er helt ødelagt. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/frost-weathering-limekiln-after.jpgfrost-weathering-limekiln-afterOppsmuldrede flak av slemming på bakken under murverket, 12. januar 2018. Minner om heftig frost. Sammenlign med bilder over. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/frost-heaving2.jpgfrost-heaving2Islinser med nåleformet is som vokser og hever jordmonn har vi alle sett! Her fra Kvernsteinsparken i Hyllestad 12. januar 2018. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/frost-heaving1.jpgfrost-heaving1Islinse med nåleformet is kan lett heve stein! Fra Kvernsteinsparken i Hyllestad 12. januar 2018. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/frost-heave-jotunheimen.jpgfrost-heave-jotunheimenIslinser som har dannet hevede mønstre i morenemasser ved Juvasshytta i Jotunheimen. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/slemming-kalkovnen-hyllestad.jpgslemming-kalkovnen-hyllestadFrøydis Akse tester en enkel slemming laget av nybrent, lesket kalk på nordsiden av kalkovnen i juni 2017. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2018/01/klima-fureneset-des-jan-2017-18.pngklima-fureneset-des-jan-2017-18Værforholdene i den aktuelle perioden på Fureneset, 20 km vest for Kvernsteinsparken. Det er normalt noe kaldere i Kvernsteinsparken, men diagrammet gir et inntrykk av hvordan værforholdene endret seg. Data fra www.eklima.nohttps://per-storemyr.net/wp-content/uploads/2018/01/kalkovnen-i-hyllestad.jpgkalkovnen-i-hyllestadKalkovnen i Kvernsteinsparken i Hyllestad under brenning i juni 2017. Foto: Per Storemyr2018-01-13T16:42:40+00:00monthlyhttps://per-storemyr.net/2017/12/17/vaernes-norges-mest-komplette-sandsteinskirke-fra-middelalderen/https://per-storemyr.net/wp-content/uploads/2017/12/dsc_6828.jpgDypt inne i Værnes kirke: En 800 år gammel gang i vesttårnet. Sandstein på vegger, sandsteinsheller i tak og gulv. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/12/vaernes-soerportal.jpgvaernes-soerportalSørportalen på Værnes kirke da pussen på kirken var hogd vekk på 1990-tallet. Her er det sandstein i murene! Og grønnskifer i portalen. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/12/innhold-vc3a6rnes-kirke.jpginnhold-vaernes-kirkeInnholdsfortegnelse - Stige, M. & Pettersson, K. E. (eds.), Værnes kirke - en kulturskatt i stein og tre. Stjørdal historielag, Stjørdalhttps://per-storemyr.net/wp-content/uploads/2016/12/13-leirmc3b8rtel.jpg13-leirmortelDetalj av «leirmørtelen» som er brukt i fugene på koret og skipet i Værnes kirke. Vi ser den grønnlige, leirholdige sanden, klumper av kalk (hvite), luftbobler (sirkelrunde fordypninger) og nederst en treflis. Prøve fra korets vegg mot sakristiet. Millimeterskala. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/12/12-marmor-gravplate.jpg12-marmor-gravplateDetalj av gravplaten fra 1200-tallet som nå befinner seg i søndre sidealternisje i Værnes kirke. Gravplaten er hogd i hvit marmor med karakteristiske «bånd» av mørkere mineraler. Platen kommer etter all sannsynlighet fra Nidarosdomens gamle brudd i Sparbu. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/12/11-hvelv-ukjent-stein.jpg11-hvelv-ukjent-steinHvelvet i tårnet på Værnes kirke. Hvelvribbene er hogd av steintyper vi ennå ikke kjenner opprinnelsen til. Foto: Kjartan Hauglid.https://per-storemyr.net/wp-content/uploads/2016/12/10-grc3b8nnskifer-kleber-tc3a5rntrapp.jpg10-gronnskifer-kleber-tarntrappNederst: Detalj av trappesteinen i nedre del av vindeltrappen i tårnet på Værnes kirke. Vi ser at fugen mellom de grønne klorittskiferne er pinnet med en mørk skifer, kanskje fra bruddet på Sorte. Øverst: Detalj av vindeltrappens øvre deler. Her finner vi meget godt bevart kleberstein – Trondheimskleber – med svært gode hoggespor. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/12/9-nordportalen.jpg9-nordportalenDetalj av nordportalen på Værnes kirke. Her ser vi hvordan den grønne klorittskiferen, en svært viktig stein i Trøndelags middelalder, tar seg ut. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/12/8-storvika-geologi.jpg8-storvika-geologiLagrekke med Stjørdalsandstein ved Storvika på Sutterøya. Her ser vi hvordan steinen tar seg ut i en bratt fjellskrent, vekslinger mellom kompakt sandstein og lett forvitrede lag med kalkmineraler. Steinen er av samme kvalitet som den vi finner på Værnes kirke. Foto: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/12/7-brudd-storvika.jpg7-brudd-storvikaSteinbruddet i Storvika på Sutterøya. Vi ser hvordan det er hogd ut stein i den lett skrånende ryggen ut mot fjorden (her ved flo). Det er imidlertid noe usannsynlig at dette kan være et middelalderbrudd, da middelvannstand på den tiden kan ha stått 4-5 m høyere enn i dag. Foto: Per Storemyr.2017-12-17T01:15:11+00:00monthlyhttps://per-storemyr.net/2017/09/27/new-open-source-book-soapstone-in-the-north-quarries-products-and-people-7000-bc-ad-1700/https://per-storemyr.net/wp-content/uploads/2017/09/soapstone-in-the-north-front.jpgsoapstone-in-the-north-front"Soapstone in the North" - front coverhttps://per-storemyr.net/wp-content/uploads/2017/09/soapstone-in-the-north-back.jpgsoapstone-in-the-north-back"Soapstone in the North" - back coverhttps://per-storemyr.net/wp-content/uploads/2017/09/hana-soapstone-quarry.jpghana-soapstone-quarrySeveral authors on excursion to the Hana soapstone quarry by Bergen during a book seminar in 2015. Photo by Per Storemyr2017-12-13T15:56:39+00:00monthlyhttps://per-storemyr.net/2017/10/09/was-nidaros-cathedral-built-from-stone-extracted-in-a-large-underground-medieval-quarry/https://per-storemyr.net/wp-content/uploads/2017/10/bakkaunet-trondheim-quarry-ashlar.jpgbakkaunet-trondheim-quarry-ashlarA carved-out, medieval soapstone block still attached to the bedrock. From excavations in the Bakkaunet quarry by Trondheim and Nidaros Cathedral, 2004. Photo by Per Storemyr2017-12-13T15:55:50+00:00monthlyhttps://per-storemyr.net/2017/08/17/forvitring-av-kleberstein-pa-middelalderkirker-to-videoer/https://per-storemyr.net/wp-content/uploads/2017/08/utsein-vestportal-foredrag-storemyr.jpgutsein-vestportal-foredrag-storemyrHvorfor forvitrer kleberstein? Foredrag om den gotiske vestportalen på Utstein kloster i 2017. Screenshot AM-UiS2017-12-13T15:55:15+00:00monthlyhttps://per-storemyr.net/2015/05/20/new-ways-of-looking-at-highly-organised-stone-quarrying-in-ancient-egypt/2023-08-21T21:21:58+00:00monthlyhttps://per-storemyr.net/2012/02/15/with-pickaxe-into-modern-times-ii-quarrying-of-mares-at-the-balearic-islands/2017-11-28T01:51:16+00:00monthlyhttps://per-storemyr.net/2012/03/16/nidarosdomens-steinbrudd-i-byggingen-av-kristkirken-1070-1100/2022-12-08T16:25:45+00:00monthlyhttps://per-storemyr.net/thematic-maps/https://per-storemyr.net/wp-content/uploads/2017/11/millstone-park-hyllestad-map.jpgMap of Millstone Park, Hyllestad, NorwayMap of Millstone Park, Hyllestad, Norway2017-11-19T14:32:21+00:00weekly0.6https://per-storemyr.net/2017/10/15/hotmix-nybrent-hyllestadkalk-leskes-og-testes-som-restaureringsmortel-pa-stavanger-domkirke/https://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-hotmix4.jpghyllestad-brentkalk-hotmix4Hotmix fra Hyllestadkalk: Brentkalken lesker og utvider seg kraftig. Dermed dannes det sprekker i sanden. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-kalk-stavanger-domkirke-testfelter1.jpghyllestad-kalk-stavanger-domkirke-testfelterDe tre ulike kalkmørtlene fra Hyllestadkalk på testfeltet på Stavanger domkirke. Merk at fargen vil bli mye lysere når mørtelen har herdet! Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/kalksirkelen4.jpgkalksirkelen«Kalksirkelen». Her er en forenklet fremstilling av kjemien i kalkbrenning, lesking og herding (karbonatisering). Illustrasjon: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-hotmix3.jpghyllestad-brentkalk-hotmix3Hotmix fra Hyllestadkalk. George Murphy viser hvordan den endelige mørtelen ser ut. En fast og feit mørtel velegnet til restaurering av gamle steinbygninger. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-hotmix2.jpghyllestad-brentkalk-hotmix2Hotmix fra Hyllestadkalk. Brentkalken er nesten ferdig lesket inne i sanden. Nå gjenstår blandingen med spade. En tung prosess! Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-hotmix1.jpghyllestad-brentkalk-hotmix1Hotmix fra Hyllestadkalk: Nedknust brentkalk legges i en grop av mursand, mer sand legges over kalken, litt vann helles over – og dermed blir kalken lesket. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brenning-juni-2017.jpghyllestad-brenning-juni-2017Brentkalken som ble testet på Stavanger domkirke kom fra «middelalderovnen» i Kvernsteinsparken i Hyllestad. Her ble det brent kalk på tradisjonelt vis i juni 2017. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-limeputty.jpghyllestad-brentkalk-limeputtyKalkpasta! Lesket kalk uten tilførsel av sand. Tre ulike kalktyper: Øverst til venstre; Verdalskalk brent ved Nidarosdomen i 2017. Øverst til høyre; en svensk kalk nylig brent. Nederst; karakteristisk, «sjokoladebrun Hyllestadkalk. Men fy søren så vanskelig det er å blande denne pastaen med sand til en brukbar mørtel uten bruk av moderne mørtelblander! Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-kalk-stavanger-domkirke-test.jpghyllestad-kalk-stavanger-domkirke-testGeorge Murphy er spesialist på restaureringsmuring. Her tester han mørtel laget fra nybrent Hyllestadkalk på Stavanger domkirke i oktober 2017. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2017/10/hyllestad-brentkalk-tc3b8rrlesking-sand-sikting.jpghyllestad-brentkalk-tørrlesking-sand-siktingKombinasjonsmix fra Hyllestadkalk. Når denne kalkmixen er ferdig lesket, er den så tørr at man kan «kjøre» den gjennom et sikt for å bli kvitt ubrente og halvbrente biter av kalk. Resultatet er et fint pulver som blandes med litt vann og med stor møye blandes med en spade til fin mørtel. Foto: Per Storemyr2017-10-18T11:14:09+00:00monthlyhttps://per-storemyr.net/2017/09/10/nidaros-the-portland-cement-cathedral-baker-memorial-lecture/https://per-storemyr.net/wp-content/uploads/2017/09/portland-cement-nidaros-cathedral.jpgportland-cement-nidaros-cathedralThe newly restored choir at Nidaros Cathedral in the 1880s (left) and 1994 (right), before the last restoration early 2000s. All the white calcite crusts are a result of leaching of calcium hydroxide from Portland Cement used in the 1880s. Photos by the Nidaros Restoration Workshop and Per Storemyr.2017-09-18T10:14:34+00:00monthlyhttps://per-storemyr.net/2017/07/13/experimental-archaeology-building-a-classic-intermittent-limekiln-and-burning-marble-at-millstone-park-hyllestad-western-norway/https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-361.jpglimeburning-hyllestad-2017 (36)Laying out a layer of spruce branches on top of the filled kiln…https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-55.jpglimeburning-hyllestad-2017 (55)Day 3. Sveinung and Torbjørn trying to keep temperatures up! The new, inferior firewood produced a lot of coal and ash, and we had to regularly empty the kiln. Note that the heat is intense now – clothing from the local fire brigade came in handy!https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-54.jpglimeburning-hyllestad-2017 (54)The kiln has burnt for about 40 hours. We started to get a bit worried about the wooden roof; hot up there above the kiln… So we improvised, and all went well!https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-53.jpglimeburning-hyllestad-2017 (53)We stuck to our aim of measuring temperatures every hour! Jobjørn, Gunnar and Kjell Magnar at work.https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-52.jpglimeburning-hyllestad-2017 (52)But the kiln swallowed enormous amout of firewood! After 48 hours our fine load of dry birch was almost empty, and we needed to do something – fast! Sivert came to our rescue, but – unfortunately – the mixed firewod did not have the same quality as the dry birch; it was dried for two years only. We simply did not know that firewood quality played such an enourmous importance. From now on, the burning was a fight to keep up temperatures! We have learnt a lesson!https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-51.jpglimeburning-hyllestad-2017 (51)Otherwise, work, work, work. 2-3 times an hour, often more frequently. Terje B. in action.https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-50.jpglimeburning-hyllestad-2017 (50)…and we made whitewash from the slaked lime, painted our kiln!https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-49.jpglimeburning-hyllestad-2017 (49)Bits and pieces of burnt marble tended to fall through openings in the vault. We tested them, wet-slaked them immediately! Some pieces already burnt through after a little more than 24 hours. Note the classic, beige colour! A result of impurities in the marble.https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-48.jpglimeburning-hyllestad-2017 (48)In an attempt at achieving higher temperatures in the front part of the kiln, Terje B. covered the back part with clay (to reduce draught here). But, alas, we were not able to obtain the necessary 850+ degrees over a prolonged period of time. In the back part, all is still very fine!https://per-storemyr.net/wp-content/uploads/2017/07/limeburning-hyllestad-2017-47.jpglimeburning-hyllestad-2017 (47)1100 degrees in the firing chamber – and the marble vault is keeping up!2017-09-10T20:50:11+00:00monthlyhttps://per-storemyr.net/2017/06/28/update-after-long-absence-follow-on-facebook/2017-06-28T00:37:41+00:00monthlyhttps://per-storemyr.net/2011/07/08/impressions-from-summer-fieldwork-in-norway/2017-01-19T00:18:23+00:00monthlyhttps://per-storemyr.net/2011/09/04/experimental-archaeology-the-traditional-way-of-quarrying-soapstone/2017-01-19T00:16:37+00:00monthlyhttps://per-storemyr.net/2016/12/31/happy-new-year-from-the-most-beautiful-old-quarry-in-western-norway/https://per-storemyr.net/wp-content/uploads/2016/12/hyllestads-vakreste-steinbrudd1.jpghyllestads-vakreste-steinbrudd1A medieval millstone quarry taken over by a creek in rainy Western Norway: At Hyllestad, the largest Viking Age and Medieval quarry landscape in Northern Europe. Photo by Per Storemyr2017-03-07T11:01:02+00:00monthlyhttps://per-storemyr.net/2016/05/16/fra-aswan-til-hyllestad-hva-er-et-steinbruddlandskap/https://per-storemyr.net/wp-content/uploads/2016/05/aswan-stone-transport-donkeys.jpgaswan-stone-transport-donkeysAswan, Egypt. For et par år tilbake. Transport av stein slik det ble gjort for tusenvis av år siden. I et landskap der steinbrytning tok til allerede i eldre steinalder. Foto: Per Storemyr2016-05-16T19:23:58+00:00monthlyhttps://per-storemyr.net/2013/02/27/the-little-known-archaeology-of-gharb-aswan-upper-egypt/2017-06-01T01:15:29+00:00monthlyhttps://per-storemyr.net/2015/02/10/geologi-og-kulturminner-bevaring-av-gamle-steinbrudd/2016-04-18T20:44:40+00:00monthlyhttps://per-storemyr.net/2016/03/13/gamle-steinbrudd-som-unesco-verdensarv-en-analyse/https://per-storemyr.net/wp-content/uploads/2016/03/dronninggruva_hyllestad_kvernstein.jpgdronninggruva_hyllestad_kvernstein"Dronninggruva" i kvernsteinslandskapet i Hyllestad, Ytre Sogn. Her er ICOMOS på besøk i nominasjonsprosessen mot verdensarvsted i 2014; man blir vist rundt av godt trente unge guider fra Hyllestad skule. Men verdensarv-prosessen er nå på vent og veien videre høyst uklar. Foto: Per Storemyr2016-03-21T23:25:31+00:00monthlyhttps://per-storemyr.net/2015/06/14/ny-bok-nidarosdomens-grunnfjell-en-kulturhistorisk-reise-i-steinbryternes-fotspor/2016-03-03T07:59:04+00:00monthlyhttps://per-storemyr.net/2015/08/18/nidarosdomen-den-viktigste-marmorkatedralen-nord-for-alpene/https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-16.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (16)Allmenningen - en liten øy utenfor Fosen der det aldri før hadde blitt hogget stein - kom til å bli den viktigste marmorprodusenten for Nidarosdomen i middelalderen. Herfra kom det tusenvis av slanke søyler til Europas nordligste katedral.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-15.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (15)Den fine marmoren i Sparbu er ikke lett å få øye på. Men drar man bort mosen, så dukker det opp spor etter uttak av noen av Norges flotteste gravplater fra middelalderen.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-14.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (14)Sparbu var et av de viktigste ressursentra for stein i Trondheimsregionen i middelalderen. Og herfra kom det både søyler og gravplater i skinnende hvit marmor til Nidarosdomen.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-13.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (13)Det indre av oktogonen på Nidarosdomen. Her kom hvite marmorsøyler først på plass mot slutten av 1100-tallet - og tradisjonen fortsatte under ombygginger utover 1200-tallet.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-12.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (12)Tempelkirken i London. En av de mange kikrer og katedraler i England som tok i bruk Purbeck-marmor for å skape kontrast til lyse kirekevegger i middelalderen.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-11.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (11)Gravplaten i Tournai-marmor på Nidarosdomen ble på 1200-tallet gjenbrukt som tak i hovedtårnets ganger. En ussel tilværelse for slikt et fint steinarbeid!https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-10.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (10)Gravplater i Tournai-marmor fra Nord-Frankrike - og fra Nidarosdomen, omkring midten av 1100-tallet.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-9.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (9)Døpefonten i Lincoln-katedralen i England. Den er hogget av Tournai-marmor fra Belgia i middelalderen.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-8.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (8)Carrara - verdens viktigste og mest kjente steinbrudd. Bruddene har vært i drift i 3000 år. Der var naturligvis herfra Michelangelo fikk seg stein til udødelige David.https://per-storemyr.net/wp-content/uploads/2015/08/per_storemyr_nidarosdomens_grunnfjell_lanseringsforedrag-7.jpgPer_Storemyr_Nidarosdomens_grunnfjell_lanseringsforedrag (7)Slik ser Tournai ut i dag - med middelalderkatedralen i sentrum.2016-03-03T07:56:32+00:00monthlyhttps://per-storemyr.net/2015/08/21/nidarosdomens-grunnfjell-les-utdrag-og-omtaler-av-boken/https://per-storemyr.net/wp-content/uploads/2015/08/storemyr-nidarosdomens-grunnfjell1.jpgstoremyr-nidarosdomens-grunnfjell1Nidarosdomens grunnfjell - en kulturhistorisk reise i stein. Foto: Henning Grøtt2016-03-03T07:49:44+00:00monthlyhttps://per-storemyr.net/2015/12/23/madammen-som-rodde-langs-sorlandskysten-og-startet-et-mineraleventyr-pa-1700-tallet-var-det-sann-i-steinalderen-ogsa/2023-07-26T12:28:13+00:00monthlyhttps://per-storemyr.net/2016/01/25/ogsa-et-stykke-verneverdig-norge-de-60-steinbruddene-ved-middelalderens-klosterruiner-pa-selja-hovedoya-og-rein/https://per-storemyr.net/wp-content/uploads/2016/01/reinskloster_steinbrudd1.jpgReinskloster_steinbruddKart over steinbruddene ved Reinskloster. Totalt dekker de gamle bruddene nesten 15 mål i det overgrodde landskapet. Kart: Per Storemyr og Hans Marius Johansenhttps://per-storemyr.net/wp-content/uploads/2016/01/geologi-norge-ngu-utvalgte-middelalderklostre.jpggeologi-norge-ngu-utvalgte-middelalderklostreGrunnfjell på Selja, den kaledonske fjellkjede i Trøndelag og Oslofeltet under murene på Hovedøyas kloster. Dette er den spennende og varierte geologien ved noen av Norges viktigste klostre fra middelalderen. Kart fra NGU.https://per-storemyr.net/wp-content/uploads/2016/01/selja-steinbrudd-gneis.jpgselja-steinbrudd-gneisNorges fineste gneisbrudd fra middelalderen: Helt i fjæra og rett ved siden av klosterruinene på Selja. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/selja-olivinstein-sunnivakirken.jpgselja-olivinstein-sunnivakirkenTypisk varierende utseende på metaolivinstein på Selja, her fra det rekonstruerte murverket på ruinen av Sunnivakirken. De lyse partiene er talkrike, de brune er olivinrike. Den brune fargen skyldes forvitring; opprinnelig var steinen nesten grønn. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/reinskloster-steinbrudd.jpgreinskloster-steinbruddArkeologisk utgraving av gammelt steinbrudd rett ved Reins kloster. Det er Hans Marius Johansen fra Sør-Trøndelag fylkeskommune som er graveansvarlig. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/huseby-kleberbrudd-c3b8ysanden.jpghuseby-kleberbrudd-øysandenEt av Norges mange klebersteinbrudd som ennå ikke er registrert i Askeladden: Husby i Sør-Trøndelag - et svært brudd som ble mye brukt til de middelalderske bygningene i regionen. Dette er et av Norges best bevarte bygningssteinbrudd fra middelalderen. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/hovedc3b8ya-skipet-stein.jpghovedøya-skipet-steinSkipet og tårnet i ruinene av Hovedøya kloster. i forgrunnen store kvadre av "importert" ortocerkalkstein fra Oslo, i bakgrunnen murverk av sandstein som ble brutt på øya. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/hovedc3b8ya-sandstein-brudd.jpghovedøya-sandstein-bruddSandsteinsbrudd på Hovedøya. Vi ser fra bruddet og rett mot Oslos havnebasseng. Dette er ikke er veldig gammelt brudd, men på akkurat det samme stedet der det ble brutt ut stein til klosteret i middelalderen. Foto: Per Storemyr2016-01-26T14:05:08+00:00monthlyhttps://per-storemyr.net/2016/01/04/happy-new-year-with-a-cavalcade-of-images-from-2015/https://per-storemyr.net/wp-content/uploads/2016/01/vaernes-medieval-church-gravestone.jpgvaernes-medieval-church-gravestoneA medieval grave slab in marble from Værnes church, Central Norway. Værnes was built in the 12th century, as one of the key stone churches up north. Very fortunately, I can carry on studies on the building stones of this church - thanks to my involvement with an interdisciplinary group of researchers keen on the Middle Ages - the "Grubleseminar" group. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/stavanger-cathedral-rain-east-front.jpgstavanger-cathedral-rain-east-frontStavanger Cathedral will be restored over the next 10 years. Thanks a lot to Stavanger municipality and the Archaeological Museum at the University of Stavanger for taking me onboard in the planning phase! Photo of the east front of the cathedral by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/selja-medieval-monastery-ruins.jpgselja-medieval-monastery-ruinsAnother major work that was finished in 2015: On the stone quarries that was used for building medieval monasteries in Norway. More information is forthcoming on my website (but see also under "Publications" at my website). Working with the Norwegian Directorate for Cultural Heritage has been just great! Image from a 2015 seminar at Selja monastery at the westernmost tip of Norway. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/rock-art-kaafjord-alta.jpgrock-art-kaafjord-altaThe rock art at Alta never ceases to fascinate! Here from the Kåfjord site in the fall of 2015. I'm very grateful that I've been able to work with the good people at The World Heritage Rock Art Centre - Alta Museum for some years now. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/hyllestad-harbour-millstone-export.jpghyllestad-harbour-millstone-exportThis is my contemporary home, at Hyllestad in Western Norway. From just this place thousands of millstones were exported to Europe in the Viking Age and the Middle Ages. A spring tide has left the modern quay unrecognisable... Thanks to the Norwegian Millstone Centre and the Foundation for the Museums in Sogn og Fjordane County, where I work part-time as associate professor. Photo from our living room (!) by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/gebel_el_qurna_chisels_wedgeholes.jpgGebel_el_Qurna_chisels_wedgeholesTogether with my good colleague Jim Harrell I published a major paper on Ancient Egyptian quarries last year, "Limestone and sandstone quarrying in Ancient Egypt: tools, methods and analogues" (see under "Publications" at my website). It was an important paper for me, since I was forced to review what we know about quarrying of limestone and sandstone in the Pharaonic period. Photo from Aswan by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/froysjoen-expressboat-devonian-conglomerate.jpgfroysjoen-expressboat-devonian-conglomerateThere is at least one great thing about living in Western Norway: The coastal express boat! It is the best way of travelling from one job to another. I have made numerous trips up and down the magnificent coastline, here at Frøysjøen between Florø and Måløy - with Devonian sandstones and conglomerates in the background, and very close to the grand rock art site at Vingen. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2016/01/e18-excavations-sagene-near-arendal.jpge18-excavations-sagene-near-arendalThis was like coming home to my childhood forests! Archaeological investigations at the Sagene Mesolithic occupation site, part of the work undertaken prior to the building of a new, major highway (E18) between Arendal and Tvedestrand. My task was to investigate a Stone Age quartz quarry at a neighbouring site (Kvastad). Thanks to the Museum of Cultural History at the University of Oslo for taking me onboard! Photo by Per Storemyr.https://per-storemyr.net/wp-content/uploads/2016/01/bjornaa-quarry-nidaros-cathedral.jpgbjornaa-quarry-nidaros-cathedralSince 2011 I've been working on a book on the history of stone quarries. Nidaros cathedral, the northernmost of Europe's great medieval cathedrals forms the key case study. Historic picture from its most important modern quarry - Bjørnå in Nordland County - after a very troublesome rock fall in the 1920s. Many thanks to The Restoration Workshop (NDR) and The Geological Survey of Norway for publishing the book in 2015. (See under "Publications" at my website.) Photo by NDR2016-01-18T00:47:19+00:00monthlyhttps://per-storemyr.net/2015/02/01/winter-walk-in-the-hyllestad-millstone-quarries/https://per-storemyr.net/wp-content/uploads/2015/02/hyllestad_myklebust_quarries_winter_4.jpgAbandoned, snow-covered millstones in the Stone Cross Quarry. The quarry has got its name from co-production of early-medieval stone crosses. Photo by Per StoremyrAbandoned, snow-covered millstones in the Stone Cross Quarry. The quarry has got its name from co-production of early-medieval stone crosses. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/01/hyllestad_millstone_park_winter_1a.jpghQuarry walls in the Millstone Park at Hyllestad. Photo by Per StoremyrQuarry walls in the Millstone Park at Hyllestad. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/01/hyllestad_millstone_park_winter_2.jpgThe main symbol welcoming visitors in the Millstone Park: A millstone, put up when the Norwegian Queen inaugurated the Park back in 2002. Photo by Per StoremyrThe main symbol welcoming visitors in the Millstone Park: A millstone, put up when the Norwegian Queen inaugurated the Park back in 2002. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/01/hyllestad_millstone_park_winter_1.jpgCopy of Early Medieval Stone cross in the Millstone Park. Such crosses, often much taller and often produced in Hyllestad, were raised all along the West Norwegian coast in the early times of Christianity up north. Photo by Per Storemyr.Copy of Early Medieval Stone cross in the Millstone Park. Such crosses, often much taller and often produced in Hyllestad, were raised all along the West Norwegian coast in the early times of Christianity up north. Photo by Per Storemyr.https://per-storemyr.net/wp-content/uploads/2015/01/hyllestad_myklebust_quarries_winter_2.jpgQuarry wall at Øvre Myklebust. Almost 10 metres high, this is one of the larger individual quarries in Hyllestad. Photo by Per StoremyrQuarry wall at Øvre Myklebust. Almost 10 metres high, this is one of the larger individual quarries in Hyllestad. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/01/hyllestad_myklebust_quarries_winter.jpg"Classic" quarry at Øvre Myklebust, with the quarry wall at the rear, two waste heaps in the front and access track in between. Photo by Per Storemyr"Classic" quarry at Øvre Myklebust, with the quarry wall at the rear, two waste heaps in the front and access track in between. Photo by Per Storemyr2016-01-14T11:00:57+00:00monthlyhttps://per-storemyr.net/2015/12/18/kvernsteinsbruddene-i-hyllestad-en-historie-i-tre-akter/https://per-storemyr.net/wp-content/uploads/2015/12/hyllestad_utskipingshamn_kvernstein.jpgHyllestad_utskipingshamn_kvernsteinEr det en kvernstein der i dypet eller er det ikke? Den ligger i alle fall i en av de viktigste utskipningshavnene for kvernstein i vikingtid og middelalder - og sikkert også senere: i buktene ved Myklebustneset i Hyllestad. Og bakom ruver Lihesten. Foto: Per Storemyr2015-12-18T18:16:48+00:00monthlyhttps://per-storemyr.net/2015/12/13/beautiful-neolithic-and-iron-age-querns-from-norway-on-the-history-of-grinding-grain/https://per-storemyr.net/wp-content/uploads/2015/12/dsc_7048.jpgAswan_model_clay_rotary_quern_womanWoman grinding grain with a rotary hand quern. Modern clay model, Aswan, Egypt. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/12/tidlig_dreiekvern_am3.jpgtidlig_dreiekvern_AM3Split granite boulder used as a lower stone for a rotary hand quern. Found at Ullandhaug, dating to the 5th century AD, diameter 40.5 cm (inventory no. S9643 fnr. 111). The upper stone is also made from granite, but it was not in the same context as the lower stone (inventory no. S11759, c. 300 AD). Archaeological Museum, University of Stavanger. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/12/tidlig_dreiekvern_am2.jpgtidlig_dreiekvern_AM2Pair of a rotary hand quern made from mica-rich gneiss found at Sørbø, c. 550 AD. Both the upper and lower stones are rather slim, diameter 46-47 cm. Archaeological Museum, University of Stavanger, inventory no. S12530.25. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/12/tidlig_dreiekvern_am.jpgtidlig_dreiekvern_AMSplit granite boulder used as a lower stone for a rotary hand quern. Found at Obrestad, dating to the Late Roman Iron Age (300-500 AD), diameter 56.5 cm. Archaeological Museum, University of Stavanger, inventory no. S6754ø. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/12/skubbekvern_am.jpgskubbekvern_AMMy favourite saddle quern: Long, slim, beautifully curved, well-used: A true masterpiece. But it may have taken thousands of hours of hard grain-grinding work to get to this form. Who did it: A woman, of course! When: Sometime way back when, in the Neolithic, perhaps in the Bronze Age. On display at Archaeological Museum, University of Stavanger, item no. S11891. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/12/middle_kingdom_quern_louvre.jpgMiddle_Kingdom_quern_LouvreWomen grinding grain with saddle querns. Middle Kingdom Egypt. Wooden model, Louvre Paris. Photo by Per Storemyr2015-12-14T12:36:44+00:00monthlyhttps://per-storemyr.net/2013/08/28/burning-rock-experiments-with-fire-setting-at-the-stone-age-melsvik-chert-quarries-in-northern-norway/https://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting9.jpgTypical, small fires made during the experiments. Photo: Per StoremyrTypical, small fires made during the experiments. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_temperature_logging_lab5.gifTemperature curve for a spot half a cm below the centre of the fire. Illustration: Per StoremyrTemperature curve for a spot half a cm below the centre of the fire. Illustration: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting8.jpgRemoving cracked stone by wedging with bone and hammerstone. Photo: Per StoremyrRemoving cracked stone by wedging with bone and hammerstone. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting7.jpgBonfires to crack up stone in the Melsvik chert quarry. Photo: Per StoremyrBonfires to crack up stone in the Melsvik chert quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting6.jpgOur tool kit for the fire setting experiments - for removal of cracked, but not entirely loose stone. Photo: Per StoremyrOur tool kit for the fire setting experiments - for removal of cracked, but not entirely loose stone. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting5.jpgThe typical circular form with convex bottom of an ancient fire set spot in the Melsvik quarries. Photo: Per StoremyrThe typical circular form with convex bottom of an ancient fire set spot in the Melsvik quarries. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting4.jpgOverlooking excavated habitation and tool making areas from an ancient fire set spot in the Melsvik quarry. Photo: Per StoremyrOverlooking excavated habitation and tool making areas from an ancient fire set spot in the Melsvik quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting3.jpgInitial cracking at the surface in a fire setting experiment. Photo: Per StoremyrInitial cracking at the surface in a fire setting experiment. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting2.jpgBlocks and flakes produced by fire setting. Note that the whitish flake has been exposed to high temperatures and is useless for tool making. Photo: Per StoremyrBlocks and flakes produced by fire setting. Note that the whitish flake has been exposed to high temperatures and is useless for tool making. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/melsvik_firesetting1.jpgA round "depression" with convex bottom from our experoments. Just like in the stone age. Photo: Per StoremyrA round "depression" with convex bottom from our experoments. Just like in the stone age. Photo: Per Storemyr2022-04-27T11:23:18+00:00monthlyhttps://per-storemyr.net/2015/11/30/saltforvitring-pa-kulturminner-om-enkel-analyse-av-salt-lag-din-egen-kjokkenlab/https://per-storemyr.net/wp-content/uploads/2015/11/halitt_hyllestad_otringsneset1.jpghalitt_hyllestad_otringsneset1Havsalt! Vannet i fjæra har fordampet og etterlatt seg et kunstverk av kubiske halittkrystaller. Hyllestad våren 2014. Bildebredde ca. 5 cm. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/salt_sampling_stavanger_cathedral.jpgsalt_sampling_stavanger_cathedralSlik kan man ta prøver av små mengder salt som har sprengt løs kalkslemmingen på en middelaldervegg: Med en pensel som dytter saltet ned i en liten prøvepose. Her fra Stavanger domkirke. Kjapp kjøkkenanalyse: Små mengder sulfat, klorid, men først og fremst nitrat, sannsynligvis natriumnitrat. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/salttyper_paa_norske_kulturminner.jpgsalttyper_paa_norske_kulturminnerDette er salttyper som jeg har funnet på norske kulturminner, spesielt i Trøndelag og på Vestlandet. Når relativ luftfuktighet går over likevektsfuktigheten, så går saltet i oppløsning, vel å merke hvis man bare har å gjøre med den aktuelle salttypen. Når det er mange salttyper i en vegg vil likevektsfuktigheten være annerledes. Tabell: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/natrium-vismut-sulfat.jpgnatrium-vismut-sulfatMikrokjemi. Slik ser det ut under et enkelt mikroskop når vismutsulfat reagerer med natrium i saltprøven din: Det dannes stavformede krystaller av natrium-vismut-sulfat, en entydig bekreftelse på at det er natrium i saltprøven. Foto: Christine Bläuer, fra http://www.csc-sarl.ch//files/blaeuerboehm_1994_salzuntersuchungenanbaudenkm_lern_zkk_8_1_1.pdf?14,14https://per-storemyr.net/wp-content/uploads/2015/11/salt_distribution_west_house_archbishops_palace_trondheim.jpgsalt_distribution_west_house_archbishops_palace_trondheimDet er dette vi streber etter: En forståelse av fordelingen av salttyper som ødelegger for eksempel middelaldermurverk. Her 40-50 saltprøver fra Vesthuset (ca.1250) i Erkebispegården i Trondheim. Saltkilder og forvitringsmekanismer er svært komplekse i dette tilfellet. Men det tok bare noen få timer å analysere alle prøvene i "kjøkkenlabben". Illustrasjon: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/nidaros-cathedral-natural-weathering-grytdal-stone1.jpgnidaros-cathedral-natural-weathering-grytdal-stone1Sterkt forvitrede skulpturer (konsollhoder) fra 1800-tallet på Nidarosdomen. Her har saltene gips og epsomitt (hvite/grå skorper) nærmest spist skulpturene i stykker. Kilden til saltene er kismineraler (magnetkis) i klebersteinen skulpturene er hogget av. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/kitchenlab_salt_trondheim_regaliaroom.jpgkitchenlab_salt_trondheim_regaliaroomEn kjøkkenlab. Eller rettere sagt en midlertidig lab for å analysere store mengder saltprøver i det sterkt dekorerte Regalierommet i Erkebispegården i Trondheim. Her er stillaser for konservering, lamper for å se godt - og polarisasjonsmikroskop, stereolupe, teststrips og et utvalg kjemikalier for å analysere salt. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/halitt_hyllestad_otringsneset.jpghalitt_hyllestad_otringsnesetHavsalt! Vannet i fjæra har fordampet og etterlatt seg et kunstverk av kubiske halittkrystaller. Hyllestad våren 2014. Bildebredde ca. 5 cm. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/halite_microcope_curled_needles.jpghalite_microcope_curled_needlesHalitt under polarisasjonsmikroskopet. Her ser vi krøllede nåler som er så ustabile at de vil forsvinne i en vannløsning straks den relative luftfuktigheten overstiger 70-75%. Bildebredde ca. 0,5 mm. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/11/halite_curled_needles.jpghalite_curled_needlesDette er også halitt. Krøllede nåler av natriumklorid som har spist opp kalkmalerier i Erkebispegården i Trondheim. Bildebredde ca. 1 cm. Foto: Per Storemyr2015-12-06T00:21:11+00:00monthlyhttps://per-storemyr.net/2015/10/11/the-rhyolite-quarries-at-bomlo-in-norway-traces-of-firesetting-in-the-neolithic/https://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-12.jpgsiggjo_neolithic_rhyolite_quarry (12)On the way to the Siggjo peak. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-11.jpgsiggjo_neolithic_rhyolite_quarry (11)One of the Siggjo peaks with many traces of firesetting. This is outside of the main rhyolite vein and quarry area. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-10.jpgsiggjo_neolithic_rhyolite_quarry (10)Weak traces of firesetting (in the foreground) at the Siggjo quarry. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-9.jpgsiggjo_neolithic_rhyolite_quarry (9)Mountain path on a waste heap at the Siggjo rhyolite quarry. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-8.jpgsiggjo_neolithic_rhyolite_quarry (8)This is the rhyolite at Siggjo: fine-grained and banded. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-7.jpgsiggjo_neolithic_rhyolite_quarry (7)Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-6.jpgsiggjo_neolithic_rhyolite_quarry (6)Overview of the Siggjo Neolithic rhyolite quarry at Bømlo, Western Norway. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-5.jpgsiggjo_neolithic_rhyolite_quarry (5)Convex traces of firesetting in the Siggjo Neolithic rhyolite quarries. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-4.jpgsiggjo_neolithic_rhyolite_quarry (4)A shallow hole in the rock. Traces of firesetting at the Siggjo Neolithic rhyolite quarries. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/10/siggjo_neolithic_rhyolite_quarry-3.jpgsiggjo_neolithic_rhyolite_quarry (3)A quarry with a view to the Atlantic Ocean. Traces of firesetting at the Siggjo Neolithic rhyolite quarries. Photo by Per Storemyr2015-10-11T20:55:02+00:00monthlyhttps://per-storemyr.net/2011/09/08/de-gamle-jerngruvene-i-neskilen-ved-arendal/https://per-storemyr.net/wp-content/uploads/2011/09/neskil_gruver_kart.jpgKart over Neskilgruvene (grunnlag fra norgeskart.no, viktigste kilder: Kjerulf & Dahll 1861, Helland 1904, Vogt 1910, J. H. Simonsens registreringer)Kart over Neskilgruvene (grunnlag fra norgeskart.no, viktigste kilder: Kjerulf & Dahll 1861, Helland 1904, Vogt 1910, J. H. Simonsens registreringer)https://per-storemyr.net/wp-content/uploads/2011/09/nes_verk_masovnen.jpgMasovnen på Næs Jernverksmuseum (2007)Masovnen på Næs Jernverksmuseum (2007)https://per-storemyr.net/wp-content/uploads/2011/09/vogt_neskilenkart.jpgVogts kart over Neskilen i hans bok om norske jernforekomster fra 1910Vogts kart over Neskilen i hans bok om norske jernforekomster fra 1910https://per-storemyr.net/wp-content/uploads/2011/09/gamle-mc3b8rfjc3a6r-grube-tegning.jpgTegning av Gamle Mørfjær fra 1848. Fra arkivet til Bolvik jernverk, gjengitt i "Stokkens historie"Tegning av Gamle Mørfjær fra 1848. Fra arkivet til Bolvik jernverk, gjengitt i "Stokkens historie"https://per-storemyr.net/wp-content/uploads/2011/09/neskilgruverny.gifKart over Neskilgruvene (grunnlag fra norgeskart.no, viktigste kilder: Kjerulf & Dahll 1861, Helland 1904, Vogt 1910, J. H. Simonsens registreringer)Kart over Neskilgruvene (grunnlag fra norgeskart.no, viktigste kilder: Kjerulf & Dahll 1861, Helland 1904, Vogt 1910, J. H. Simonsens registreringer)https://per-storemyr.net/wp-content/uploads/2011/08/dsc_3352.jpgMøllebukta i Neskilen: Fra et "afskyelig Sted" til SørlandsidyllMøllebukta i Neskilen: Fra et "afskyelig Sted" til Sørlandsidyllhttps://per-storemyr.net/wp-content/uploads/2011/08/arendal-feltspatmc3b8lle-gammelt-og-nytt.jpg"Arendal Feltspatmølle" som var i drift fra 1898 til 1928 (foto fra "Trekk av Stokkens historie") og Møllebukta i dag"Arendal Feltspatmølle" som var i drift fra 1898 til 1928 (foto fra "Trekk av Stokkens historie") og Møllebukta i daghttps://per-storemyr.net/wp-content/uploads/2011/08/img_0475.jpgDen gamle "Stollgruva" helt ved vannkanten i NeskilenDen gamle "Stollgruva" helt ved vannkanten i Neskilenhttps://per-storemyr.net/wp-content/uploads/2011/08/img_0461.jpgDel av de store berghaldene i Neskil-gruveneDel av de store berghaldene i Neskil-gruvenehttps://per-storemyr.net/wp-content/uploads/2011/08/img_0456.jpgSmal på overflaten, men denne gruva - trolig "Gamle Aslak" - går nesten 200 m rett nedSmal på overflaten, men denne gruva - trolig "Gamle Aslak" - går nesten 200 m rett ned2015-10-02T12:04:15+00:00monthlyhttps://per-storemyr.net/2012/11/02/firesetting-in-the-stone-age-chert-quarries-at-melsvik-in-northern-norway/https://per-storemyr.net/wp-content/uploads/2012/11/great_langdale_firesetting.jpgTraces of firesetting in the Neolithic axe quarries at Great Langdale in Cumbria. Photo: Per StoremyrTraces of firesetting in the Neolithic axe quarries at Great Langdale in Cumbria. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_haammerstone.jpgHammerstone with clear marks of use in the Melsvik chert quarry. Photo: Per StoremyrHammerstone with clear marks of use in the Melsvik chert quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_varieties1.jpgDebitage and small blocks from the Melsvik work areas showing the chert's range of colours. Photo: Per StoremyrDebitage and small blocks from the Melsvik work areas showing the chert's range of colours. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_steps.jpgBigger steps at Melsvik, perhaps evidence of a variety of the "stepped extraction" technique. Photo: Per StoremyrBigger steps at Melsvik, perhaps evidence of a variety of the "stepped extraction" technique. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_stepped_extraction.jpgProbable traces of "stepped extraction" at the Melsvik chert, taking advantage of the pronounced, sub-vertical cleavage to produce slabs. The image also shows the quality of the chert in the most massive, quarried deposits, with alternating light and darker, almost purplish (jasper-like) layers Photo: Per StoremyrProbable traces of "stepped extraction" at the Melsvik chert, taking advantage of the pronounced, sub-vertical cleavage to produce slabs. The image also shows the quality of the chert in the most massive, quarried deposits, with alternating light and darker, almost purplish (jasper-like) layers Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_possible_firesetting.jpgPossible traces of firesetting at the Melsvik chert quarry: Concave (and some convex) scars on the vertical face at the back of a quarried terrace. Photo: Per StoremyrPossible traces of firesetting at the Melsvik chert quarry: Concave (and some convex) scars on the vertical face at the back of a quarried terrace. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_overview.jpgExcavated quarry spot along the hillock and tool production areas in front. Photo: Per StoremyrExcavated quarry spot along the hillock and tool production areas in front. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_oval_scar.jpgPossible traces of firesetting at the Melsvik chert quarry: Convex, superficial scar at sub-horizontal surfaces. Photo: Per StoremyrPossible traces of firesetting at the Melsvik chert quarry: Convex, superficial scar at sub-horizontal surfaces. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_martin_lars.jpgWas it like this the chert at Melsvik was quarried in the Stone Age? Archaeologist Lars Julsrud of Alta Museum applying brute force with a hammerstone (without touching the ancient surface!), his colleague Martin Hykkerud perhaps taking a more sceptic stance. Photo: Per StoremyrWas it like this the chert at Melsvik was quarried in the Stone Age? Archaeologist Lars Julsrud of Alta Museum applying brute force with a hammerstone (without touching the ancient surface!), his colleague Martin Hykkerud perhaps taking a more sceptic stance. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/11/melsvik_layers.jpgThin, folded beds of chert and dolomite by the Melsvik quarries. Photo: Per StoremyrThin, folded beds of chert and dolomite by the Melsvik quarries. Photo: Per Storemyr2023-05-24T20:21:24+00:00monthlyhttps://per-storemyr.net/2015/07/14/on-the-origin-of-roman-concrete/https://per-storemyr.net/wp-content/uploads/2015/07/pantheon_cupola.jpgPantheon_cupolaThe Pantheon cupola in Rome, made by Roman concrete some 2000 years ago. Source: Wikimedia Commons, CC BY-SA 3.02015-07-16T10:09:04+00:00monthlyhttps://per-storemyr.net/2015/07/14/nidarosdomen-og-forvitring-sett-fra-17-ar-tilbake-i-tid/https://per-storemyr.net/wp-content/uploads/2015/07/nidaros-cathedral-natural-weathering-grytdal-stone.jpgnidaros-cathedral-natural-weathering-grytdal-stoneNaturlig forvitring av sulfidrik kleberstein fra Grydal i Gauldalen. Disse konsollhodene ble satt opp på Nidarosdomen på slutten av 1880-tallet og var for litt siden bare en skygge av seg selv - av helt naturlige årsaker. Nå er de byttet ut med nye hoder. Foto: Per Storemyr2015-07-14T00:09:33+00:00monthlyhttps://per-storemyr.net/2011/10/24/international-conference-on-millstone-in-bergen-and-the-hyllestad-quarry-landscape/https://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_04.jpgOne of the brilliant guides showing us the Hyllestad quarriesOne of the brilliant guides showing us the Hyllestad quarrieshttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_03.jpgThe millstone park at HyllestadThe millstone park at Hyllestadhttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_02.jpgAbandoned millstones in the Hyllestad quarry landscapeAbandoned millstones in the Hyllestad quarry landscapehttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_01.jpgHyllestad millstones still in useHyllestad millstones still in usehttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_10.jpgMilling flour at SkorMilling flour at Skorhttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_09.jpgA flour mill at SkorA flour mill at Skorhttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_08.jpgPart of the restored milling complex at SkorPart of the restored milling complex at Skorhttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_07.jpgSaying goodbye to our teachers at HyllestadSaying goodbye to our teachers at Hyllestadhttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_06.jpgThe proud guys that taught me the art of millstone carvingThe proud guys that taught me the art of millstone carvinghttps://per-storemyr.net/wp-content/uploads/2011/10/hyllestad_05.jpgTorbjørn Løland and his pupil explaining us a quarry for early stone crosses - and millstoneTorbjørn Løland and his pupil explaining us a quarry for early stone crosses - and millstone2015-06-25T20:36:02+00:00monthlyhttps://per-storemyr.net/2014/06/16/moving-to-work-with-the-norwegian-millstone-centre-at-hyllestad-in-west-norway/https://per-storemyr.net/wp-content/uploads/2014/06/hyllestad_seminar_2014.jpgThe annual Hyllestad seminar draws researchers and laypersons to the centre. Here from the April 2014 seminar, with archaeologist Morten Kuchera demonstrating flint knapping. Photo by Per StoremyrThe annual Hyllestad seminar draws researchers and laypersons to the centre. Here from the April 2014 seminar, with archaeologist Morten Kuchera demonstrating flint knapping. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/06/hyllestad_schoolchildren_guides.jpgA symbol of integration with the local community: Hyllestad school children acting as guides for an international audience. Photo by Per StoremyrA symbol of integration with the local community: Hyllestad school children acting as guides for an international audience. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/06/otringsneset.jpgTorbjørn Løland showing one of the millstone quarries in Hyllestad, at Otringsneset just by the fjord. Photo by Per StoremyrTorbjørn Løland showing one of the millstone quarries in Hyllestad, at Otringsneset just by the fjord. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/06/storemyr_ruettimann_firda.jpgstoremyr_ruettimann_firdaFrom the Firda newspaper: Interview with my wife, and picture with our two children Lotta and Tarald2015-06-25T20:35:11+00:00monthlyhttps://per-storemyr.net/2015/06/22/om-handverk-og-hvordan-barn-hjelper-hverandre-og-litt-om-skolevesen/https://per-storemyr.net/wp-content/uploads/2015/06/mange-liker-c3a5-jobbe-med-smykker.jpgKvernsteinsmarknaden i Hyllestad 2015Yrende liv på Kvernsteinsmarknaden i Hyllestad 2015 - med kleberworkshopen i front. Foto: Franziska Rüttimannhttps://per-storemyr.net/wp-content/uploads/2015/06/taralogjardar.jpgtaraldogjardarJardar og Tarald finpusser klebersteinsmykker før de legger dem ut for salg på marknaden. Foto: Franziska Rüttimannhttps://per-storemyr.net/wp-content/uploads/2015/06/klebersteins-jobbing.jpgklebersteins jobbingBarn i intens konsentrasjon. Fine klebersteinsmykker blir produsert. Foto: Franziska Rüttimann2015-06-25T20:31:04+00:00monthlyhttps://per-storemyr.net/2011/07/08/new-york-times-egypt-or-central-park-where-does-an-ancient-obelisk-belong/https://per-storemyr.net/wp-content/uploads/2011/07/weatheringthetimes.jpg"Weathering The Times" - a video from New York Times on the decay of Cleopatra's Needle"Weathering The Times" - a video from New York Times on the decay of Cleopatra's Needle2015-05-28T19:12:01+00:00monthlyhttps://per-storemyr.net/2013/10/04/burning-rock-an-update-for-german-speaking-readers/https://per-storemyr.net/wp-content/uploads/2013/10/melsvik_firesetting_new2.jpgCracked chert from fire setting. Photo: Per StoremyrCracked chert from fire setting. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/10/melsvik_firesetting_new1.jpgmelsvik_firesetting_newhttps://per-storemyr.net/wp-content/uploads/2013/10/melsvik_firesetting_new.jpgmelsvik_firesetting_new2015-05-27T09:57:55+00:00monthlyhttps://per-storemyr.net/2015/05/22/palaeolithic-rock-art-at-risk-new-discoveries-in-wadi-abu-subeira-upper-egypt/https://per-storemyr.net/wp-content/uploads/2015/05/el-aqba-el-saghira_lp_rockart1.jpgEl-Aqba-el-Saghira_LP_rockart1Newly discovered Late Palaeolithic panel at el-Aqba el-Saghira: A duck, perhaps a monkey (turn your head and you will see a long tail) and unidentified animals. Photo by Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2015/05/subeira_bovid_hippo_animal1.jpgSubeira_bovid_hippo_animal1Late Palaeolithic rock art in Wadi Abu Subeira: A headless bovid, a hippo and, below (upright), perhaps a suckling calf? Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/05/subeira_kelany_huyge1.jpgSubeira_Kelany_Huyge1Adel Kelany (right) and Dirk Huyge discussing the rock art in Wadi Abu Subeira. They are slightly competing now: Who finds the most Palaeolithic rock art? Adel at Subeira and Saghira? Or Dirk at Qurta and el-Hosh? Photo by Per Storemyr2015-05-22T10:15:23+00:00monthlyhttps://per-storemyr.net/2015/04/28/steinhoggerne-hvem-var-de-en-reise-i-tid-og-rom/https://per-storemyr.net/wp-content/uploads/2015/04/kvernsteinsbrytning_mayen.jpgSlik tenker man seg brytning av basaltsøyler i de store kvernsteinsbruddene i Mayen i Tyskland. Fra utstillingene i Vulkanpark Eifel. Foto: Per StoremyrSlik tenker man seg brytning av basaltsøyler i de store kvernsteinsbruddene i Mayen i Tyskland. Fra utstillingene i Vulkanpark Eifel. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/kvernsteinhogging_roy_harald_brendsdal.jpgRoy Harald Brendsdal hogger dreiekvern etter vikingtidens mønster i Hyllestad. Foto: Per StoremyrRoy Harald Brendsdal hogger dreiekvern etter vikingtidens mønster i Hyllestad. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/hoggarhus_selbu.jpg"Hoggarhus" i Selbu. Det var kaldt å bryte og hogge kvernstein på fjellet i Selbu i gamle dager. Snøhytter var løsningen! Foto fra Rolseth 1947."Hoggarhus" i Selbu. Det var kaldt å bryte og hogge kvernstein på fjellet i Selbu i gamle dager. Snøhytter var løsningen! Foto fra Rolseth 1947.https://per-storemyr.net/wp-content/uploads/2015/04/erkebispegaarden_vestfloyen_1500_tallet.jpgEt av de siste arbeidene i kleberstein i senmiddelalderens Norge: Portal hogget rett før reformasjonen i Erkebispegården i Trondheim. Foto: Per StoremyrEt av de siste arbeidene i kleberstein i senmiddelalderens Norge: Portal hogget rett før reformasjonen i Erkebispegården i Trondheim. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/per_gunnar_silseth_steinhogger_eide.jpgSkrifthogger Per Gunnar Silseth fra Eide på Nord-Møre demonstrerer skrifthogging på Hyllestadseminaret 2015. Foto: Per StoremyrSkrifthogger Per Gunnar Silseth fra Eide på Nord-Møre demonstrerer skrifthogging på Hyllestadseminaret 2015. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/steinhogger_eva_stavsoien.jpgSteinhogger Eva Stavsøien fra Nidaros Domkirkes Restaureringsarbeider demonstrerer hogging av ulike typer kleberstein under Hyllestadseminaret 2015. Foto: Per StoremyrSteinhogger Eva Stavsøien fra Nidaros Domkirkes Restaureringsarbeider demonstrerer hogging av ulike typer kleberstein under Hyllestadseminaret 2015. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/steinsmed_morten_kutschera.jpgMorten Kutschera i aksjon på Hyllestadseminaret 2015. Foto: Per StoremyrMorten Kutschera i aksjon på Hyllestadseminaret 2015. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/skubbekverner_aswan.jpgTidløse emner til skubbekverner i steinbruddene i Aswan. Foto: Per StoremyrTidløse emner til skubbekverner i steinbruddene i Aswan. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2015/04/ostermundigen_steinbrecher.jpgHogging av store blokker av sandstein på gammelmåten i Bern (Sveits) på 1950-tallet. Foto: W. Nydegger, i Schmalz (1983)Hogging av store blokker av sandstein på gammelmåten i Bern (Sveits) på 1950-tallet. Foto: W. Nydegger, i Schmalz (1983)https://per-storemyr.net/wp-content/uploads/2015/04/nidarosdomen_workers_1872_s.jpgSteinhoggere og andre arbeidere ved Nidarosdomen i 1872. Foto: WikipediaSteinhoggere og andre arbeidere ved Nidarosdomen i 1872. Foto: Wikipedia2015-04-29T17:56:10+00:00monthlyhttps://per-storemyr.net/2013/12/31/happy-new-year-with-a-cavalcade-of-stone-images-from-2013/https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_mels_grindingstone.jpgSwitzerland: The millstone quarries in Mels (Canton St. Gallen), showing how rough outs were carved from the gritstone bedrock. This is a quarry with a history all the way back to the Roman period. Photo: Per StoremyrSwitzerland: The millstone quarries in Mels (Canton St. Gallen), showing how rough outs were carved from the gritstone bedrock. This is a quarry with a history all the way back to the Roman period. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_kaafjord.jpgNorway: A big elk at the rock art site at Kåfjord, near Alta in the northernmost part of the country. This is a place where I carried out weathering and conservation studies with the Alta Museum in 2013. Photo: Per Storemyr.Norway: A big elk at the rock art site at Kåfjord, near Alta in the northernmost part of the country. This is a place where I carried out weathering and conservation studies with the Alta Museum in 2013. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_horg_gravechamber.jpgNorway: Reconstructed Iron Age grave chamber in a burial mound in Gauldal, near Trondheim in the central part of the country. The mound is part of the great cultural path made by "Horg Bygdatun". Photo: Per Storemyr.Norway: Reconstructed Iron Age grave chamber in a burial mound in Gauldal, near Trondheim in the central part of the country. The mound is part of the great cultural path made by "Horg Bygdatun". Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_hell_rockart.jpgNorway: Stone Age reindeer rock art at the Hell(!) site near Trondheim. Photo: Per Storemyr.Norway: Stone Age reindeer rock art at the Hell(!) site near Trondheim. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_gurten_quarries_hollow_way.jpgSwitzerland: A lost block of sandstone along a beautiful hollow way leading from the quarries at Gurten near the capital Berne. Photo: Per Storemyr.Switzerland: A lost block of sandstone along a beautiful hollow way leading from the quarries at Gurten near the capital Berne. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_gildeskaal.jpgNorway: Looking for marble quarries along the stony beaches in the northern part of the country. This work was part of a great workshop at the Gildeskål medieval church. Photo: Per Storemyr.Norway: Looking for marble quarries along the stony beaches in the northern part of the country. This work was part of a great workshop at the Gildeskål medieval church. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_dovre_kirke.jpgNorway: This is also a way of protecting wooden churches! Slate at the facades of Dovre church in Central Norway. Photo: Per Storemyr.Norway: This is also a way of protecting wooden churches! Slate at the facades of Dovre church in Central Norway. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_closed.jpgThe longest lunch. A nightmare for those of us keen on visiting museums. I was there in May... Photo: Per StoremyrThe longest lunch. A nightmare for those of us keen on visiting museums. I was there in May... Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_brugg_building_crane.jpgSwitzerland:; The medieval core of Brugg, the city where I live. Building cranes tend to obscure the sights at the moment. Photo: Per StoremyrSwitzerland:; The medieval core of Brugg, the city where I live. Building cranes tend to obscure the sights at the moment. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/12/kavalkade_2013_bm_mesopotamia_soapstone_vessel.jpgMesopotamia, or rather the British Museum. Soapstone (or rather chlorite schist) vessel brought in from Iran in the middle of the third millennium BC. Photo: Per Storemyr.Mesopotamia, or rather the British Museum. Soapstone (or rather chlorite schist) vessel brought in from Iran in the middle of the third millennium BC. Photo: Per Storemyr.2015-03-10T23:56:44+00:00monthlyhttps://per-storemyr.net/2014/12/31/happy-new-year-from-hyllestad-with-a-mountain-and-a-fjord-from-summer-to-winter/https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_22.jpgHyllestad_view_(22)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_21.jpgHyllestad_view_(21)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_20.jpgHyllestad_view_(20)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_19.jpgHyllestad_view_(19)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_18.jpgHyllestad_view_(18)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_17.jpgHyllestad_view_(17)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_16.jpgHyllestad_view_(16)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_15.jpgHyllestad_view_(15)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_14.jpgHyllestad_view_(14)https://per-storemyr.net/wp-content/uploads/2014/12/hyllestad_view_13.jpgHyllestad_view_(13)2015-04-11T07:15:43+00:00monthlyhttps://per-storemyr.net/2010/12/12/cleopatra%e2%80%99s-needle-tracing-obelisk-weathering-with-old-photos/https://per-storemyr.net/wp-content/uploads/2010/12/thutmosei_obelisk_karnak.jpgObelisk of Thutmose I at KarnakObelisk of Thutmose I at Karnakhttps://per-storemyr.net/wp-content/uploads/2010/12/paris_obelisk.jpgThe Paris obelisk at Place de la ConcordeThe Paris obelisk at Place de la Concordehttps://per-storemyr.net/wp-content/uploads/2010/12/ny_obelisk_old.jpgThe New York obelisk in 1901. Source: PPOCThe New York obelisk in 1901. Source: PPOChttps://per-storemyr.net/wp-content/uploads/2010/12/new_york_obelisk_alexandria_1856_60.jpgThe New York obelisk at Alexandria in the late 1850sThe New York obelisk at Alexandria in the late 1850s. Source: PPOChttps://per-storemyr.net/wp-content/uploads/2010/12/london_obelisk.jpgThe London obeliskThe London obeliskhttps://per-storemyr.net/wp-content/uploads/2010/12/description_obelisks_alexandria.jpgThe obelisks at Alexandria around 1800. Source: Description de l’ÉgypteThe obelisks at Alexandria around 1800. Source: Description de l’Égyptehttps://per-storemyr.net/wp-content/uploads/2010/12/davidroberts_obelisksalexandria.jpgDavid Roberts' painting of the obelisks at Alexandria. Source: PPOCDavid Roberts' painting of the obelisks at Alexandria. Source: PPOChttps://per-storemyr.net/wp-content/uploads/2010/12/cleopatrasneedleny_1856_2008.jpgThe New York obelisk from the late 1850s until today. Sources: PPOC and WikipediaThe New York obelisk from the late 1850s until today. Sources: PPOC and Wikipediahttps://per-storemyr.net/wp-content/uploads/2010/12/aswan_granite_quarry.jpgAswan granite quarry under archaeological excavation 2003Aswan granite quarry under archaeological excavation 20032014-11-13T13:45:31+00:00monthlyhttps://per-storemyr.net/2014/09/29/the-first-reported-prehistoric-grinding-stone-quarry-in-the-egyptian-sahara-new-paper/https://per-storemyr.net/wp-content/uploads/2014/09/2_pleistocene_terrace.jpgOn the way to discovery of the first reported prehistoric grinding stone quarry in the Egyptian Sahara. Dirk Huyge walks the stony desert. Photo: Per Storemyr.On the way to discovery of the first reported prehistoric grinding stone quarry in the Egyptian Sahara. Dirk Huyge walks the stony desert. Photo: Per Storemyr.2014-11-03T21:23:41+00:00monthlyhttps://per-storemyr.net/2014/10/28/the-ancient-stone-quarries-in-egypt-as-a-new-serial-world-heritage-site/https://per-storemyr.net/wp-content/uploads/2014/10/silsila_tom_heldal.jpgDeserves a place on the World Heritage List: The Gebel el-Silsila ancient sandstone quarries. Photo: Tom HeldalDeserves a place on the World Heritage List: The Gebel el-Silsila ancient sandstone quarries. Photo: Tom Heldal2020-12-02T21:38:17+00:00monthlyhttps://per-storemyr.net/2014/10/27/a-palaeolithic-life-size-nubian-ibex-carved-on-rock-adel-kelany-with-new-discoveries-in-wadi-abu-subeira-upper-egypt/https://per-storemyr.net/wp-content/uploads/2014/10/cas_13_site_subeira.jpgIt is hot in Wadi Abu Subeira! So the site guard needs water while caring for the Late Palaeolithic ibex, carved on the slab in the middle of the image. Photo: Per StoremyrIt is hot in Wadi Abu Subeira! So the site guard needs water while caring for the Late Palaeolithic ibex, carved on the slab in the middle of the image. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/10/late_palaeolithic_ibex_subeira.jpgIt is terribly difficult to photograph the almost two metres long Late Palaeolithic ibex! So rather see the tracing by Adel Kelany, in the recent paper uploaded to academia.edu. Photo: Per StoremyrIt is terribly difficult to photograph the almost two metres long Late Palaeolithic ibex! So rather see the tracing by Adel Kelany, in the recent paper uploaded to academia.edu. Photo: Per Storemyr2014-10-27T12:12:46+00:00monthlyhttps://per-storemyr.net/2014/09/30/fire-on-the-rocks-new-paper-on-firesetting-in-ancient-egyptian-stone-quarrying/https://per-storemyr.net/wp-content/uploads/2014/09/fire4.jpgFire was a key method in extracting stone in the old days - more important than we usually think of. Photo by Per StoremyrFire was a key method in extracting stone in the old days - more important than we usually think of. Photo by Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/09/fire2.jpgLoads of charcoal in the debris of the Unfinished Obelisk quarry at Aswan. Photo by Tom HeldalLoads of charcoal in the debris of the Unfinished Obelisk quarry at Aswan. Photo by Tom Heldalhttps://per-storemyr.net/wp-content/uploads/2014/09/adel1.jpgAdel Kelany of the MSA (Ministry of State for Antiquities) has always been part in our work in Egypt. Here by one of the likely fireset and poundered trenches at the Unfinished Obelisk quarry, Aswan. Photo by Per StoremyrAdel Kelany of the MSA (Ministry of State for Antiquities) has always been part in our work in Egypt. Here by one of the likely fireset and poundered trenches at the Unfinished Obelisk quarry, Aswan. Photo by Per Storemyr2014-10-03T14:54:41+00:00monthlyhttps://per-storemyr.net/2014/09/01/jakten-pa-steinbruddene-til-middelalderens-kirke-og-kloster-pa-hovedoya-ved-oslo/https://per-storemyr.net/wp-content/uploads/2014/09/hovedc3b8ya-geologi-brc3b8gger-steinbrudd.jpghovedøya-geologi-brøgger-steinbruddDet er flere titalls steinbrudd på Hovedøya. Her er bare de tre største inntegnet - med det gamle geologiske kartet til Brøgger som bakgrunn.https://per-storemyr.net/wp-content/uploads/2014/08/hovedc3b8ya-sandsteinsbrudd.jpghovedøya-sandsteinsbruddParti av det store sandsteinsbruddet nordvest på Hovedøya. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/08/hovedc3b8ya-edmundskirken-mur.jpghovedøya-edmundskirken-murParti fra Edmundskirken på Hovedøya. Vi ser regelmessig sandsteinsmurverk til høyre, med et bånd av vulkanske bergarter midt i veggen. Kvadersteinene omkring portalen er hogget av ortocerkalkstein brakt til Hovedøya fra fastlandet. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/08/hovedc3b8ya-bastion-mur.jpghovedøya-bastion-murEn kanonstilling fra 1800-tallet på Hovedøya. Den befinner seg på et oppbygd platå, som har en fin mur med stein som er brutt ut på 1800-tallet. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/08/hovedc3b8ya-edmundskirken.jpghovedøya-edmundskirkenRuinene av Edmundsirken og en del av det middelalderske klosterkomplekset på Hovedøya. Foto: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/08/hovedc3b8ya-diabasbrudd.jpghovedøya-diabasbruddFra det største diabasbruddet på Hovedøya. Her ser vi store hauger med stein som har blitt sortert etter deres størrelse. Helt til venstre er en haug med pukkstein. Foto: Per Storemyr.2014-09-02T21:51:46+00:00monthlyhttps://per-storemyr.net/2014/01/16/new-paper-ancient-desert-and-quarry-roads-at-aswan/https://per-storemyr.net/wp-content/uploads/2014/01/uprightstoneshermitage.jpgPart of a large field of upright stones in a side wadi to Wadi el-Tilal, about one km north of St. Simeon's monastery, looking north. On the hill to the right is a possible Early Christian hermitage. Photo: Per StoremyrPart of a large field of upright stones in a side wadi to Wadi el-Tilal, about one km north of St. Simeon's monastery, looking north. On the hill to the right is a possible Early Christian hermitage. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/uprightstones_wadielfaras.jpgThe central field of upright stones at the southern margin of Wadi el-Faras, looking north. A well-worn path leads to a stone circle in the middle of the plateau. Photo: Per StoremyrThe central field of upright stones at the southern margin of Wadi el-Faras, looking north. A well-worn path leads to a stone circle in the middle of the plateau. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/tingarsanctuary.jpgThe vast field of upright stones NW of the sanctuary (top of hill) at Gebel Tingar. Photo: Per StoremyrThe vast field of upright stones NW of the sanctuary (top of hill) at Gebel Tingar. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/stonedonkeytransport.jpgSome modern sandstone quarries at West Aswan are small, artisan-type quarries, where the donkey is still the most important mode of transport. This is the way transportation of grinding stone from the ancient quarries in the area would have been undertaken. Photo: Per StoremyrSome modern sandstone quarries at West Aswan are small, artisan-type quarries, where the donkey is still the most important mode of transport. This is the way transportation of grinding stone from the ancient quarries in the area would have been undertaken. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/roadwadieldeir.jpgThe paved New Kingdom road along the northern margin of Wadi el-Deir towards the Nile by Naq el-Gulab. This road connects with causeways descending from Gebel Gulab. Photo: Per StoremyrThe paved New Kingdom road along the northern margin of Wadi el-Deir towards the Nile by Naq el-Gulab. This road connects with causeways descending from Gebel Gulab. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/roads_map.jpgMap based on QuarryScapes survey of long-distance cleared roads, camel trails and fields of upright stones at West Aswan. Map: Per StoremyrMap based on QuarryScapes survey of long-distance cleared roads, camel trails and fields of upright stones at West Aswan. Map: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/roads_gulab.jpgTypical New Kingdom paved quarry roads on top of Gebel Gulab, originating at specific extraction places and joining other roads. Photo: Per StoremyrTypical New Kingdom paved quarry roads on top of Gebel Gulab, originating at specific extraction places and joining other roads. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/roads_from_gulab.jpgCauseway descending the southern side of Gebel Gulab from a probably New Kingdom quarry location (in the front). Photo: Per StoremyrCauseway descending the southern side of Gebel Gulab from a probably New Kingdom quarry location (in the front). Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/roadfromtingar.jpgRoute of the ancient quarry road that leads from the Gebel Tingar sanctuary to the Nile opposite Elephantine. This road has been heavily destroyed by modern traffic. The large building is the mausoleum of Aga Khan. Photo: Per StoremyrRoute of the ancient quarry road that leads from the Gebel Tingar sanctuary to the Nile opposite Elephantine. This road has been heavily destroyed by modern traffic. The large building is the mausoleum of Aga Khan. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2014/01/quarryroads.jpgMap based on QuarryScapes survey of quarry roads at West Aswan. Note that roads are drawn with double lines (to indicate width), whereas they are shown with single lines in the legend. Map: Tom Heldal/Per StoremyrMap based on QuarryScapes survey of quarry roads at West Aswan. Note that roads are drawn with double lines (to indicate width), whereas they are shown with single lines in the legend. Map: Tom Heldal/Per Storemyr2014-06-17T13:38:00+00:00monthlyhttps://per-storemyr.net/2011/01/23/ancient-egyptian-quarries-a-literature-update-2007-2010/https://per-storemyr.net/wp-content/uploads/2011/01/obeliskquarry2008b.jpgMany new studies have been undertaken at the Aswan Unfinished Obelisk quarry over the last few yearsMany new studies have been undertaken at the Aswan Unfinished Obelisk quarry over the last few yearshttps://per-storemyr.net/wp-content/uploads/2011/01/ummessawan1.jpgAdel Kelany surveying one of the hundreds of small depressions in Umm es-Sawan. No, its not old huts, but a grinding stone quarry!Adel Kelany surveying one of the hundreds of small depressions in Umm es-Sawan. No, its not old huts, but a grinding stone quarry!https://per-storemyr.net/wp-content/uploads/2011/01/soapstone.jpgOne of the thousands of workplaces for soapstone vessels in the Eastern DesertOne of the thousands of workplaces for soapstone vessels in the Eastern Deserthttps://per-storemyr.net/wp-content/uploads/2011/01/obelisk_quarry_dolphins.jpgWhat are dolphins doing on the quarried walls in the Aswan obelisk quarry?What are dolphins doing on the quarried walls in the Aswan obelisk quarry?https://per-storemyr.net/wp-content/uploads/2011/01/memnon_davidroberts.jpgThe Memnon Colossi in the sunset. Painting by David Roberts in the 1840sThe Memnon Colossi in the sunset. Painting by David Roberts in the 1840shttps://per-storemyr.net/wp-content/uploads/2011/01/chephrenworkshopsteleridge.jpgOld Kingdom workplace for small vessels at Chephren's QuarryOld Kingdom workplace for small vessels at Chephren's Quarry2014-05-11T22:40:40+00:00monthlyhttps://per-storemyr.net/2013/08/12/new-paper-on-the-unique-epipalaeolithic-geometric-rock-art-at-el-hosh-upper-egypt/https://per-storemyr.net/wp-content/uploads/2013/08/ummessalam_sal12.jpgA complex geometric figure from Wadi Umm Salam (site SAL 12) in the Upper Egyptian Eastern Desert. Site originally found by the Eastern Desert Survey by "The Followers of Horus" in the 1990s. Photo: Per StoremyrA complex geometric figure from Wadi Umm Salam (site SAL 12) in the Upper Egyptian Eastern Desert. Site originally found by the Eastern Desert Survey by "The Followers of Horus" in the 1990s. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/08/el_hosh_atb_14.jpgThe unique geometric rock art motif at location ATB 14 at el-Hosh in Upper Egypt. Photos: Per StoremyrThe unique geometric rock art motif at location ATB 14 at el-Hosh in Upper Egypt. Photos: Per Storemyr2013-11-22T01:32:16+00:00monthlyhttps://per-storemyr.net/2013/05/17/an-update-after-months-of-inactivity-at-my-website/https://per-storemyr.net/wp-content/uploads/2013/05/riniken_millstone_quarry1.jpgOvergrown quarry pits and raised spoil heaps in the old Riniken millstone quarry landscape by Brugg in Canton Aargau, Switzerland. Photo: Per StoremyrOvergrown quarry pits and raised spoil heaps in the old Riniken millstone quarry landscape by Brugg in Canton Aargau, Switzerland. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/villnachern_millstone_quarry1.jpgAbandoned, early-modern millstone rough-out, intended for a water mill, in the Villnachern quarry landscape by Brugg in Canton Aargau, Switzerland. Photo: Per StoremyrAbandoned, early-modern millstone rough-out, intended for a water mill, in the Villnachern quarry landscape by Brugg in Canton Aargau, Switzerland. Photo: Per Storemyr2013-10-07T06:52:42+00:00monthlyhttps://per-storemyr.net/2012/02/15/st-basils-cathedral-in-moscow-on-a-cold-winter-day-25-years-ago/https://per-storemyr.net/wp-content/uploads/2012/02/st_basils_cathedral_1987_1_small.jpgSt. Basils Cathedral in January 1987St. Basils Cathedral in January 19872013-09-26T11:31:11+00:00monthlyhttps://per-storemyr.net/2013/01/22/stone-extraction-with-pickaxes-in-ancient-egypt-fact-or-fiction/https://per-storemyr.net/wp-content/uploads/2013/01/shesmetet1.jpgShesmetet1Small quarry close to Shesmetet temple in Wadi el-Hillal by Elkab, showing marks of both chisels and pickaxes. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/shesmetet_quarry_map_small.jpgShesmetet_quarry_map_smallPreliminary map of the quarry by Shesmetet temple, showing the various tool marks that can be seen at the quarry walls. Map: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/pickaxe_silsila1.jpgpickaxe_silsila1Separation trench made by pickaxe in the sandstone quarries at Gebel el-Silsila (west bank). Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/pickaxe_corners.jpgpickaxe_cornersCurved tracks of pickaxe in a corner at the Shesmetet quarry (top). The quarryman needed to turn round to remove the last bit of stone (marks to the right of the scale). This is very typical in quarries were picks have been used to make separation trenches, for example in the Berne area in Switzerland (bottom, 19th century). Photos: Per Storemyr. https://per-storemyr.net/wp-content/uploads/2013/01/pickaxe_chisels.jpgpickaxe_chiselsThe difference between chisel tracks (top) and marks from pickaxe (bottom) in the quarry by Shesmetet temple. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/pickaxe_blade.jpgpickaxe_bladeFact, no fiction: Evidence for the use of pickaxes with a narrow blade forming the cutting edge. Quarry by Shesmetet temple in Wadi el-Hillal by Elkab in Upper Egypt. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/chiselmarks_silsila.jpgchiselmarks_silsilaTypical appearance of separation trenches in Ancient Egyptian sandstone quarries, with long "chisel tracks". From the west bank at Gebel el-Silsila. Uncertain dating, but probably Graeco-Roman. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/01/chisel_qubbetelhawa.jpgchisel_qubbetelhawaChisel marks in a separation trench in a small, probably Graeco-Roman quarry at Qubbet el-Hawa by Aswan. Note the "stepped" appearance, with many small "humps". These are the result of each impact of the chisel when it is driven down through the rock with a mallet. Photo: Per Storemyr2013-06-13T08:36:05+00:00monthlyhttps://per-storemyr.net/2013/05/31/would-you-have-liked-to-live-here-at-kropfenstein-medieval-cave-castle/https://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein12.jpgA room with a view, yet the openings did not provide much light. Photo: Per StoremyrA room with a view, yet the openings did not provide much light. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein11.jpgA hole in the wall. The lavatory at Kropfenstein. Photo: Per StoremyrA hole in the wall. The lavatory at Kropfenstein. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein10.jpgAccess to Kropfenstein is along a path cut into the cliff. Photo: Per StoremyrAccess to Kropfenstein is along a path cut into the cliff. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein9.jpgThe main space at Kropfenstein, which was divided in two or three storeys. Note the row of holes for wooden beams and all the small crenels. Photo: Per StoremyrThe main space at Kropfenstein, which was divided in two or three storeys. Note the row of holes for wooden beams and all the small crenels. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein8.jpgThe alpine landscape surrounding Kropfenstein cave castle. Photo: Per StoremyrThe alpine landscape surrounding Kropfenstein cave castle. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein7.jpgSmall stone from Ilanzer Verrucano used in the masonry. Photo: Per StoremyrSmall stone from Ilanzer Verrucano used in the masonry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein6.jpgThe main space under the cliff, with a wooden beam still attached to the wall. Photo: Per StoremyrThe main space under the cliff, with a wooden beam still attached to the wall. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein5.jpgThe entrance to Kropfenstein cave castle. Photo: Per StoremyrThe entrance to Kropfenstein cave castle. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein4.jpgKropenstein: Protected by the overhanging cliff. Photo: Per StoremyrKropenstein: Protected by the overhanging cliff. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/05/kropfenstein3.jpgThe narrow corridor leading to from the entrance to the main space. Photo: Per StoremyrThe narrow corridor leading to from the entrance to the main space. Photo: Per Storemyr2022-09-12T16:36:59+00:00monthlyhttps://per-storemyr.net/2012/12/06/when-in-rome/https://per-storemyr.net/wp-content/uploads/2012/12/forum_romanum_verde_antique.jpgVerde Antico from Larissa in Greece at Forum Romanum. Photo: Per StoremyrVerde Antico from Larissa in Greece at Forum Romanum. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/forum_romanum_temple_romulus_porphyry.jpgImperial Porphyry (purple columns) from Egypt’s Eastern Desert at the Temple of Romulus, Forum Romanum. Photo: Per StoremyrImperial Porphyry (purple columns) from Egypt’s Eastern Desert at the Temple of Romulus, Forum Romanum. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/forum_romanum_paved_basalt_road.jpgWhen in Rome... well, all the roads led you there. Basalt paving at Forum RomanumWhen in Rome... well, all the roads led you there. Basalt paving at Forum Romanumhttps://per-storemyr.net/wp-content/uploads/2012/12/forum_romanum_marmo_africano.jpgMarmo Africano at Forum Romanum. Photo: Per StoremyrMarmo Africano at Forum Romanum. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/forum_romanum_cipollino.jpgMarmo Cipollino from Karystos, Evia in Greece at Forum Romanum. Photo: Per StoremyrMarmo Cipollino from Karystos, Evia in Greece at Forum Romanum. Photo: Per Storemyr2013-04-19T00:16:18+00:00monthlyhttps://per-storemyr.net/2012/01/11/with-pickaxe-into-modern-times-quarrying-of-bernese-sandstone-ch/https://per-storemyr.net/wp-content/uploads/2012/01/teufen_lochmueli_steinbruch.jpgModern, stepwise extraction of sandstone at Teufen, East Switzerland. Vertical cuts are made by drilling mainly, horizontal ones by wire sawing.Modern, stepwise extraction of sandstone at Teufen, East Switzerland. Vertical cuts are made by drilling mainly, horizontal ones by wire sawing.https://per-storemyr.net/wp-content/uploads/2012/01/quarryman_drawing.jpgCutting the trenches with pickaxe. Source: Drawing after photo from Franz Gfeller (in Gisiger 1986, p. 17)Cutting the trenches with pickaxe. Source: Drawing after photo from Franz Gfeller (in Gisiger 1986, p. 17)https://per-storemyr.net/wp-content/uploads/2012/01/petra_quarry.jpgTall sandstone quarry at vertical cliff in Petra (Jordan)Tall sandstone quarry at vertical cliff in Petra (Jordan)https://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_workplace.jpgThe masons' workplace at Ostermundigen railway station. Source: Photo from station at Wege zu KleeThe masons' workplace at Ostermundigen railway station. Source: Photo from station at Wege zu Kleehttps://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_quarrymen.jpgQuarrymen at Ostermundigen. Source: Photo from station at Wege zu Klee Quarrymen at Ostermundigen. Source: Photo from station at Wege zu Klee https://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_klee.jpgModern quarry at Ostermundigenberg with painting of Paul KleeModern quarry at Ostermundigenberg with painting of Paul Kleehttps://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_cranes.jpgCranes in the quarries at Ostermundigen. Source: Photo from station at Wege zu KleeCranes in the quarries at Ostermundigen. Source: Photo from station at Wege zu Kleehttps://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_2.jpg19th century quarry at Ostermundigenberg19th century quarry at Ostermundigenberghttps://per-storemyr.net/wp-content/uploads/2012/01/ostermundigen_1.jpgQuarry at OstermundigenbergQuarry at Ostermundigenberghttps://per-storemyr.net/wp-content/uploads/2012/01/krauchthal_weathering.jpgKrauchthal: Heavy weathering of sandstone ashlarsKrauchthal: Heavy weathering of sandstone ashlars2016-08-25T21:26:55+00:00monthlyhttps://per-storemyr.net/2013/02/02/the-old-quarry-that-was-reused-as-a-beer-brewery/https://per-storemyr.net/wp-content/uploads/2013/02/wabern_gurten_brewery_old2.jpgwabern_gurten_brewery_oldOld photo of the Gurten beer brewery in the Wabern sandstone quarry by Bern. Source: Burgerbibliothek Bernhttps://per-storemyr.net/wp-content/uploads/2013/02/wabern_quarries_old_beer_barrel.jpgwabern_quarries_old_beer_barrelOld horse cart with beer barrel in the historic Wabern quarry by Berne, Switzerland. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2013/02/wabern_quarry_sketch_1854.jpgwabern_quarry_sketch_1854Sketch of the Wabern quarry by 1854, by J.E. von Deschwanden: Source: Labhart 20062013-02-27T21:24:04+00:00monthlyhttps://per-storemyr.net/2010/10/22/ancient-quarries-and-other-archaeology-at-gharb-aswan-egypt/https://per-storemyr.net/wp-content/uploads/2010/10/gharbaswangrinders.jpgSmall stones with great significance: Grinding stone was procured at Gharb Aswan since the Late Palaeolithic periodSmall stones with great significance: Grinding stone was procured at Gharb Aswan since the Late Palaeolithic period2013-02-27T13:51:00+00:00monthlyhttps://per-storemyr.net/2011/02/09/online-papers-on-rock-art-at-gharb-aswan-west-aswan/https://per-storemyr.net/wp-content/uploads/2011/02/p449_drawing.jpgA royal ship processionA royal ship processionhttps://per-storemyr.net/wp-content/uploads/2011/02/p619_tracing.gifAn animal? A net? An idea? A concept?Geometric rock art: An animal? A net? An idea? A concept?https://per-storemyr.net/wp-content/uploads/2011/02/p214_tracing2.gifMickey Mouse at Gharb AswanMickey Mouse at Gharb Aswan2013-02-27T13:49:43+00:00monthlyhttps://per-storemyr.net/2011/12/10/classic-cars-cuba-conservation-in-practice/https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_13.jpgCuba_Cars_13https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_12.jpgCuba_Cars_12https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_11.jpgCuba_Cars_11https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_10.jpgCuba_Cars_10https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_09.jpgCuba_Cars_09https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_08.jpgCuba_Cars_08https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_07.jpgCuba_Cars_07https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_06.jpgCuba_Cars_06https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_05.jpgCuba_Cars_05https://per-storemyr.net/wp-content/uploads/2011/12/cuba_cars_04.jpgCuba_Cars_042013-02-24T21:03:54+00:00monthlyhttps://per-storemyr.net/2012/03/19/mickey-mouse-in-rock-art-at-gharb-aswan-egypt-was-he-fond-of-sound/https://per-storemyr.net/wp-content/uploads/2012/03/mickey_mouse_gharb_aswan1.jpgMickey Mouse at Gharb Aswan. Tracing by Per Storemyr (after own photo)Mickey Mouse at Gharb Aswan. Tracing by Per Storemyr (after own photo)https://per-storemyr.net/wp-content/uploads/2012/03/valley-of-the-howling-winds1.jpgThis is the small valley of the howling winds. Suitable for a Prehistoric rock concert? Photo: Per StoremyrThis is the small valley of the howling winds. Suitable for a Prehistoric rock concert? Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/03/mickey_mouse_gharb_aswan2.jpgThis is how Mickey looks like in reality. Pecked in a little "depression" of colour change, caused by various oxidation states in the Nubian sandstone. Photo: per Storemyr, This is how Mickey looks like in reality. Pecked in a little "depression" of colour change, caused by various oxidation states in the Nubian sandstone. Photo: per Storemyr2013-02-24T20:53:23+00:00monthlyhttps://per-storemyr.net/2012/05/06/quarrying-of-soft-stone-through-history/2013-01-22T13:50:18+00:00monthlyhttps://per-storemyr.net/2012/12/31/ten-quarries-of-ancient-egypt-10-firework/https://per-storemyr.net/wp-content/uploads/2012/12/firesetting_aswan_adelkelany.jpgFiresetting experiment at Aswan. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/12/firesetting_aswan.jpgOld cracks in the granite at the Unfinished Obelisk quarry at Aswan. Such cracks were very probably induced by fire in the New Kingdom to ease the extraction of granite. Photo: Per StoremyrOld cracks in the granite at the Unfinished Obelisk quarry at Aswan. Such cracks were very probably induced by fire in the New Kingdom to ease the extraction of granite. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/firesetting_chephren.jpgShattered stone surfaces at Chephren's quarry, Old Kingdom. Firesetting used to peel the block making it suitable for further work with hammerstones to create a sculpture. Photo: Per StoremyrShattered stone surfaces at Chephren's quarry, Old Kingdom. Firesetting used to peel the block making it suitable for further work with hammerstones to create a sculpture. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/firesetting_gharbaswan.jpgFire shattered rock surfaces at the silicified sandstone quarries by Gharb Aswan (West Aswan). Most likely a sign of an important stone extraction method in the New Kingdom. Photo: Per StoremyrFire shattered rock surfaces at the silicified sandstone quarries by Gharb Aswan (West Aswan). Most likely a sign of an important stone extraction method in the New Kingdom. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/firework.jpgHappy New Year with firework in the ancient quarries! Photo: Per StoremyrHappy New Year with firework in the ancient quarries! Photo: Per Storemyr2016-01-12T16:05:12+00:00monthlyhttps://per-storemyr.net/2012/12/23/ten-quarries-of-ancient-egypt-2-rod-el-gamra-dolerite-porphyry-quarry/https://per-storemyr.net/wp-content/uploads/2012/12/rodelgamra2.jpgVolcanic dyke at Rod el-Gamra showing signs of exploitation by Palaeolithic man. The naoi quarry is in the background. Photo: Per StoremyrVolcanic dyke at Rod el-Gamra showing signs of exploitation by Palaeolithic man. The naoi quarry is in the background. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/rodelgamra1.jpgThe main quarry workings at Rod el-Gamra in the Eastern Desert of Egypt. Photo: Per Storemyr2013-01-10T20:32:26+00:00monthlyhttps://per-storemyr.net/2012/12/26/ten-quarries-of-ancient-egypt-4-wadi-el-muluk-limestone-quarry/https://per-storemyr.net/wp-content/uploads/2012/12/thebeswest.jpgI once flew over Luxor and Thebes on a clear day... This is the location of the Wadi el-Muluk quarry (arrow). Photo: Per StoremyrI once flew over Luxor and Thebes on a clear day... This is the location of the Wadi el-Muluk quarry (arrow). Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/wadielmuluk2_redlines.jpgCeiling full of red lines in a gallery at the Wadi el-Muluk quarry, probably marking how the extraction of stone went on back in the New Kingdom. Photo: Per StoremyrCeiling full of red lines in a gallery at the Wadi el-Muluk quarry, probably marking how the extraction of stone went on back in the New Kingdom. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/wadielmuluk1.jpgThis is the place where we bumped into the Wadi el-Muluk limestone quarry in the winter of 1999. Photo: Per Storemyr2013-01-10T20:31:34+00:00monthlyhttps://per-storemyr.net/2012/12/27/ten-quarries-of-ancient-egypt-5-the-loner-at-chephrens-quarry/https://per-storemyr.net/wp-content/uploads/2012/12/chephren_map.jpgArchaeological map of Chephren's Quarry. Map: www.quarryscapes.noArchaeological map of Chephren's Quarry. Map: www.quarryscapes.nohttps://per-storemyr.net/wp-content/uploads/2012/12/chephren_quarry_working1.jpgThis is how it looks like at Chephren's Quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/chephrensquarry_lonely_quarryman.jpgIn the middle of nowhere, by Chephren's Quarry. Who was this guy that left the stones here almost 5000 years ago? Photo: Per StoremyrIn the middle of nowhere, by Chephren's Quarry. Who was this guy that left the stones here almost 5000 years ago? Photo: Per Storemyr2013-01-10T20:30:39+00:00monthlyhttps://per-storemyr.net/2012/12/28/ten-quarries-of-ancient-egypt-6-gebel-manzal-el-seyl-volcanic-tuff-quarry/https://per-storemyr.net/wp-content/uploads/2012/12/manzal_vessel_komaushim.jpgTuff vessel (plate), originating at Manzal el-Seyl, in the Kom Aushim Museum in the Faiyum. Photo: Per StoremyrTuff vessel (plate), originating at Manzal el-Seyl, in the Kom Aushim Museum in the Faiyum. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/manzal_el_seyl_blanks.jpg"Mysterious" U-signs at vessel blanks in the Gebel Manzal el-Seyl quarry. Photo: Per Storemyr"Mysterious" U-signs at vessel blanks in the Gebel Manzal el-Seyl quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/manzal_el_seyl_1.jpgWhat a quarry! The central summit at Gebel Manzal el-Seyl in the Eastern Desert of Egypt. Nearly 5000 years old. Photo: Per Storemyr2013-01-10T20:29:38+00:00monthlyhttps://per-storemyr.net/2012/12/29/ten-quarries-of-ancient-egypt-7-tracing-a-grinding-stone-quarry-in-the-sahara/https://per-storemyr.net/wp-content/uploads/2012/12/kharga_grindingquarry2.jpgFlint hammerstones on the alluvial terrace we walked in Kharga. Photo: Per StoremyrFlint hammerstones on the alluvial terrace we walked in Kharga. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/ummeldabadibgrinders.jpgUsed grinding stones and handstones at the Neolithic settlements by Umm el-Dabadib in Kharga. Photo: Per StoremyrUsed grinding stones and handstones at the Neolithic settlements by Umm el-Dabadib in Kharga. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/kharga_grindingquarry1.jpgA grinding stone quarry at the north scarp of the Kharga Oasis in the Egyptian Sahara. Photo: Per Storemyr2013-01-10T20:28:36+00:00monthlyhttps://per-storemyr.net/2012/12/30/ten-quarries-of-ancient-egypt-8-the-quarry-at-widan-el-faras-that-disappeared/https://per-storemyr.net/wp-content/uploads/2012/12/widan_el_faras_2006.jpgAnd this is how the quarry at Widan el-Faras looked like in 2006, after the bulldozers had done their work. Compare with photo above. Photo: Per StoremyrAnd this is how the quarry at Widan el-Faras looked like in 2006, after the bulldozers had done their work. Compare with photo above. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/widan_el_faras_2001.jpgOne of the fine Old Kingdom basalt quarries at Widan el-Faras that is now destroyed... Photo: Per Storemyr2013-01-10T20:27:23+00:00monthlyhttps://per-storemyr.net/2013/01/01/ten-quarries-of-ancient-egypt-series-summary/2020-04-20T08:39:56+00:00monthlyhttps://per-storemyr.net/2012/12/22/ten-quarries-of-ancient-egypt-1-wadi-abu-qureya-soapstone-quarry/https://per-storemyr.net/wp-content/uploads/2012/12/wadi_abu_qureya_soapstone_quarry_egypt.jpgA room with a view! A soapstone quarry at Wadi Abu Qureya in Egypt's Eastern Desert. Photo: Per Storemyr2013-01-02T23:51:32+00:00monthlyhttps://per-storemyr.net/2012/12/24/ten-quarries-of-ancient-egypt-3-the-second-pyramid-at-giza/https://per-storemyr.net/wp-content/uploads/2012/12/chephrenpyramid_quarry1_1999a.jpgPharaoh Chephren's pyramid at Giza, with remaining casing stones from the quarries at Tura at the top. Photo: Per Storemyr2013-01-02T23:49:59+00:00monthlyhttps://per-storemyr.net/2012/12/31/ten-quarries-of-ancient-egypt-9-palaeolithic-quarries-in-the-eastern-desert/https://per-storemyr.net/wp-content/uploads/2012/12/wadi_beiza3.jpgDebitage in the Palaeolithic Wadi Beiza quarry. Photo: Per StoremyrDebitage in the Palaeolithic Wadi Beiza quarry. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/wadi_beiza2.jpgA biface (hand axe) in the Wadi Beiza Palaeolithic quarries. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/12/wadi_beiza1.jpgThis is a great Palaeolithic quarry by Wadi Beiza in the Eastern Desert. It was the black, hard stone that was exploited. Photo: Per StoremyrThis is a great Palaeolithic quarry by Wadi Beiza in the Eastern Desert. It was the black, hard stone that was exploited. Photo: Per Storemyr2013-02-19T09:05:28+00:00monthlyhttps://per-storemyr.net/2012/04/06/wadi-abu-subeira-egypt-palaeolithic-rock-art-on-the-verge-of-destruction/https://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_24d.jpgThe adits of a modern clay mine in Subeira. Photo: Adel KelanyThe adits of a modern clay mine in Subeira. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_24c.jpgAdel Kamel trying to figure out the nature of the modern mining. Photo: Adel KelanyAdel Kamel trying to figure out the nature of the modern mining. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_24b.jpgClay mining goes on, but mainly underground. Photo: Adel KelanyClay mining goes on, but mainly underground. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_24a.jpgHeavy machinery is never far away from rock art in Subeira. Here a location of Predynastic petroglyphs. Photo: Adel KelanyHeavy machinery is never far away from rock art in Subeira. Here a location of Predynastic petroglyphs. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_iron_mine_development.jpgThe development in iron mining as seen through Google Earth 2003-2011The development in iron mining as seen through Google Earth 2003-2011https://per-storemyr.net/wp-content/uploads/2012/04/subeira_auroch.jpgThis superbly made auroch is part of the Late Palaeolithic rock art in Subeira. Photo: Per StoremyrThis superbly made auroch is part of the Late Palaeolithic rock art in Subeira. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_27.jpgAdmiring the Late Palaeolithic rock art at Subeira (Per Storemyr. Adel Kelany and Isabelle Therasse). Photo: Dirk HuygeAdmiring the Late Palaeolithic rock art at Subeira (Per Storemyr. Adel Kelany and Isabelle Therasse). Photo: Dirk Huygehttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_26.jpgEnormous amounts of Predynastic to recent rock art is also found at Subeira; here ibex & co. Photo: Per StoremyrEnormous amounts of Predynastic to recent rock art is also found at Subeira; here ibex & co. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_25.jpgA fence to keep intruders away from Subeira site CAS-6, which is also guarded. Photo: Per StoremyrA fence to keep intruders away from Subeira site CAS-6, which is also guarded. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_24.jpgA clay mine - and the Palaeolithic rock art is just around the corner. Photo: Per StoremyrA clay mine - and the Palaeolithic rock art is just around the corner. Photo: Per Storemyr2013-01-01T17:23:42+00:00monthlyhttps://per-storemyr.net/2012/10/07/the-world-heritage-rock-art-at-alta-in-northern-norway/https://per-storemyr.net/wp-content/uploads/2012/10/el_hosh_fishtraps1.jpgMushrooms? Penises? No, these are depictions of more than 7000 year old fish traps at el-Hosh in Upper Egypt. Arrows indicate the movement of fish to be trapped. Photo: Per StoremyrMushrooms? Penises? No, these are depictions of more than 7000 year old fish traps at el-Hosh in Upper Egypt. Arrows indicate the movement of fish to be trapped. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/gharbaswangiraffe.jpgPecked giraffes on sandstone with dark desert varnish. Aswan, Upper Egypt, 4th millennium BC. This is close to how we may imagine rock art at Alta when it was made: Light figures on a darker background. Photo: Per StoremyrPecked giraffes on sandstone with dark desert varnish. Aswan, Upper Egypt, 4th millennium BC. This is close to how we may imagine rock art at Alta when it was made: Light figures on a darker background. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/desert_kite_rockart.jpgA rock art hunting scene from Jordan, c. 2000 years old. Gazelle is being driven along leading lines into the central corral. Such a construction is popularly called "desert kite". Picture from the Megalithic portal, originally recorded by G.L. Harding (The Cairn of Hani, Antiquity 28, 1954: 165-7). A rock art hunting scene from Jordan, c. 2000 years old. Gazelle is being driven along leading lines into the central corral. Such a construction is popularly called "desert kite". Picture from the Megalithic portal, originally recorded by G.L. Harding (The Cairn of Hani, Antiquity 28, 1954: 165-7). https://per-storemyr.net/wp-content/uploads/2012/10/alta_15.jpgPerson on skies possibly hunting elk. Photo: Per StoremyrPerson on skies possibly hunting elk. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/alta_14.jpgReconstructed Stone Age skin boat with elk-headed prow in the Alta Museum. Digitally enhanced photo: Per StoremyrReconstructed Stone Age skin boat with elk-headed prow in the Alta Museum. Digitally enhanced photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/alta_13.jpgHunting with bow and arrow from a skin boat with its prow formed as the head of an elk. The human with raised arms is probably holding a pair of snow shoes. Photo: Per Storemyr Hunting with bow and arrow from a skin boat with its prow formed as the head of an elk. The human with raised arms is probably holding a pair of snow shoes. Photo: Per Storemyr https://per-storemyr.net/wp-content/uploads/2012/10/alta_12.jpgSmall whales (porpoise) in a malstroem? Photo: Per StoremyrSmall whales (porpoise) in a malstroem? Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/alta_11.jpgA big bear in the Hjemmeluft rock art. Photo: Per StoremyrA big bear in the Hjemmeluft rock art. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/10/alta_10.jpgBear hunting scene at the panel Bergbukten I: The bear has gone out from the circular feature to the right and is hunted at the left. Enhanced in green: A natural rock feature forming a bear den, from which tracks appear. Photo: Per Storemyr.Bear hunting scene at the panel Bergbukten I: The bear has gone out from the circular feature to the right and is hunted at the left. Enhanced in green: A natural rock feature forming a bear den, from which tracks appear. Photo: Per Storemyr.https://per-storemyr.net/wp-content/uploads/2012/10/alta_09.jpgThe current shoreline in at Alta, with reddish patinated bedrock. The surface features of the rock is otherwise a result of ice-scouring during the last Ice Age. The natural colour of the rock can be seen in the areas with exfoliation. Photo: Per StoremyrThe current shoreline in at Alta, with reddish patinated bedrock. The surface features of the rock is otherwise a result of ice-scouring during the last Ice Age. The natural colour of the rock can be seen in the areas with exfoliation. Photo: Per Storemyr2012-10-07T19:45:42+00:00monthlyhttps://per-storemyr.net/2012/08/20/making-medieval-stone-architecture-the-use-of-slate-in-central-norway/https://per-storemyr.net/wp-content/uploads/2012/08/stjoerdal-sandstone.jpgThis sandstone (or greywacke) was used to build Værnes church in the Middle Ages. Geologically, it occurs togehter with roofing slate. Layers with high carbonate contect tend to weather the most. Ashlar from Værnes church. Photo: Per StoremyrThis sandstone (or greywacke) was used to build Værnes church in the Middle Ages. Geologically, it occurs togehter with roofing slate. Layers with high carbonate contect tend to weather the most. Ashlar from Værnes church. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/vaernes_church_roofs.jpgVærnes church in Stjørdal, begun in the first half of the12th century. The slate roof is modern, but a testimony to the roofing slate traditions in the district. Photo: Per StoremyrVærnes church in Stjørdal, begun in the first half of the12th century. The slate roof is modern, but a testimony to the roofing slate traditions in the district. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/pinning_stone_nidaros_cathedral1.jpgAnother view of pinning stone of black slate in the joints of Gothic masonry at Nidaros Cathedral. The joint is about 5 mm wide. Photo: Per StoremyrAnother view of pinning stone of black slate in the joints of Gothic masonry at Nidaros Cathedral. The joint is about 5 mm wide. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/stiftsgaarden_trondheim_staircase.jpgThe central staircase at "Stiftsgaarden", the Royal Palace in Trondheim. Built in the 1770s, the central staircase may orginate from the same time. It was provided with facings of local soapstone and huge slabs of quartzite slate from the Almlia quarries. Photo: Per StoremyrThe central staircase at "Stiftsgaarden", the Royal Palace in Trondheim. Built in the 1770s, the central staircase may orginate from the same time. It was provided with facings of local soapstone and huge slabs of quartzite slate from the Almlia quarries. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/masonry_selja_abbey.jpgMedieval masonry at Selja Abbey featuring large-scale rubble with pinning stone in the joints. Photo: Per StoremyrMedieval masonry at Selja Abbey featuring large-scale rubble with pinning stone in the joints. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/selja_pinning_stone_quarry.jpgMedieval pinning stone quarry near Selja Abbey. The foliated gneiss in the foreground provided the raw material, whereas working the gneiss to good pinning stone to place at the flat area in the background. Photo: Per StoremyrMedieval pinning stone quarry near Selja Abbey. The foliated gneiss in the foreground provided the raw material, whereas working the gneiss to good pinning stone to place at the flat area in the background. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/soirte_skifer_floor_nidaros_cathedral_1890.jpgRestored floor of the choir at Nidaros Cathedral. The black slate between the pillars was provided from "Sorte Skifer" in the late 19th century, whereas the reddish stone is the famous marble from the Fauske quarries in Northern Norway. Photo: Per StoremyrRestored floor of the choir at Nidaros Cathedral. The black slate between the pillars was provided from "Sorte Skifer" in the late 19th century, whereas the reddish stone is the famous marble from the Fauske quarries in Northern Norway. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/almlia_slate_quarry_waste_heap.jpgThe Almlia quartzite slate quarries about 30 km west of Trondheim. The picture shows one of the great spoil heaps from early-modern production. Photo: Per StoremyrThe Almlia quartzite slate quarries about 30 km west of Trondheim. The picture shows one of the great spoil heaps from early-modern production. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/pinning_stone_nave_nidaros_cathedral.jpgPinning stone of black slate, probably from Stjørdal, gazing out of the thin joints of weathered, Gothic soapstone ashlar masonry at the nave of Nidaros Cathedral. Photo: Per StoremyrPinning stone of black slate, probably from Stjørdal, gazing out of the thin joints of weathered, Gothic soapstone ashlar masonry at the nave of Nidaros Cathedral. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/vault_west_house_archbishops_palace.jpgGothic slab vault at the West House of the Archbishop's Palace in Trondheim. The vault was made around 1250 with a combination of sandstone and slate, probably from the Stjørdal district, some 30-35 km est of the city. Photo: Per StoremyrGothic slab vault at the West House of the Archbishop's Palace in Trondheim. The vault was made around 1250 with a combination of sandstone and slate, probably from the Stjørdal district, some 30-35 km est of the city. Photo: Per Storemyr2012-08-20T23:48:46+00:00monthlyhttps://per-storemyr.net/2012/08/17/a-masterpiece-of-epipalaeolithic-geometric-rock-art-from-el-hosh-upper-egypt/https://per-storemyr.net/wp-content/uploads/2012/08/el_hosh_masterpiece_rock_art_drawing_isabelle_therasse.jpgIsabelle Therasse of the Royal Museums of Art and History in Brussels drawing the Epiplalaeolithic masterpiece rock artIsabelle Therasse of the Royal Museums of Art and History in Brussels drawing the Epiplalaeolithic masterpiece rock arthttps://per-storemyr.net/wp-content/uploads/2012/08/el_hosh_masterpiece_rock_art.jpgThe el-Hosh Epipalaeolithic rock art masterpiece. Photo: Per StoremyrThe el-Hosh Epipalaeolithic rock art masterpiece. Photo: Per Storemyr2012-08-17T11:33:56+00:00monthlyhttps://per-storemyr.net/2012/08/17/alpine-heritage-impressions-from-a-summer-in-grisons-graubunden-switzerland/https://per-storemyr.net/wp-content/uploads/2012/08/15_lagh_saoseo_small.jpgLago di Saoseo in Val di Campo. The last picture from a crystal-blue little lake in one of the most beautiful valleys in Grisons: Poschiavo. Trekking is easy and you eat, drink and sleep well at Rifugio Saoseo! Photo: Per StoremyrLago di Saoseo in Val di Campo. The last picture from a crystal-blue little lake in one of the most beautiful valleys in Grisons: Poschiavo. Trekking is easy and you eat, drink and sleep well at Rifugio Saoseo! Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/14_zillis_church_stone_colour_small.jpgThe church of St. Martin in Zillis is world-renowned for its painted interior roof. But the medieval church also has very beautiful masonry. Generally, the masonry is made from local brownish-grey gneiss, but the windows were decorated by a bluish gneiss variety and crowned by cellular dolomite (Rauwacke) or tufa for the Romanesque arches. Photo: Per StoremyrThe church of St. Martin in Zillis is world-renowned for its painted interior roof. But the medieval church also has very beautiful masonry. Generally, the masonry is made from local brownish-grey gneiss, but the windows were decorated by a bluish gneiss variety and crowned by cellular dolomite (Rauwacke) or tufa for the Romanesque arches. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/13_stampa_museum_soapstone_working_small.jpgReconstructed workshop of traditional manufacture of soapstone cooking pots at the Museum Ciäsa Granda in Stampa (Bergell). The pots were made by turning them on a lathe, which was driven by water power. This technique was so well adapted that it hardly changed after having been introduced in the Roman period. Flanking the central lathe are numerous objects also made from soapstone, such as drinking glasses. Photo: Per StoremyrReconstructed workshop of traditional manufacture of soapstone cooking pots at the Museum Ciäsa Granda in Stampa (Bergell). The pots were made by turning them on a lathe, which was driven by water power. This technique was so well adapted that it hardly changed after having been introduced in the Roman period. Flanking the central lathe are numerous objects also made from soapstone, such as drinking glasses. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/12_soglio_palazzo_salis_soapstone_small.jpgSoapstone lion heads at the Palazzo Salis, a patrician house of the influential Salis family in Soglio. The house was built in the 17th century and is now used as a hotel.Soapstone lion heads at the Palazzo Salis, a patrician house of the influential Salis family in Soglio. The house was built in the 17th century and is now used as a hotel.https://per-storemyr.net/wp-content/uploads/2012/08/11_stampa_museum_soapstone_portal_small.jpgThe entrance to one of the most remarkable museums in Grisons, the Museum Ciäsa Granda in Stampa (Bergell). The portal of the large patrician house from 1581 is made of soapstone, a stone that is common in the southern Alps and which gave rise to both a huge cooking pot industry and decoration at many churches and houses of the wealthy. Photo: Per StoremyrThe entrance to one of the most remarkable museums in Grisons, the Museum Ciäsa Granda in Stampa (Bergell). The portal of the large patrician house from 1581 is made of soapstone, a stone that is common in the southern Alps and which gave rise to both a huge cooking pot industry and decoration at many churches and houses of the wealthy. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/10_slate_quarry_bergell_small.jpgClimbing an old little slate quarry by Bondo in Bergell. This quarry, in the gneiss of the southern Alps, must have provided stone four houses in nearby Bondo and Promontogno. Photo: Per StoremyrClimbing an old little slate quarry by Bondo in Bergell. This quarry, in the gneiss of the southern Alps, must have provided stone four houses in nearby Bondo and Promontogno. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/09_soglio_slate_roofs_small.jpgBergell is stone country. Of the most impressive use of stone is the traditonal slate roofs, like on the houses here in Soglio, high up at the northern flank of the valley. Photo: Per StoremyrBergell is stone country. Of the most impressive use of stone is the traditonal slate roofs, like on the houses here in Soglio, high up at the northern flank of the valley. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/08_nossa_donna_castelmur_small.jpg0Castle country Grisons: The tower of the castle at Castelmur by Bondo in Bergell, flanked by the little church Nossa Donna. Though heavily restored, the church reaches back to the early Middle Ages. Photo: Per StoremyrCastle country Grisons: The tower of the castle at Castelmur by Bondo in Bergell, flanked by the little church Nossa Donna. Though heavily restored, the church reaches back to the early Middle Ages. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/06_ruinaulta_small.jpgThe most spectacular piece of natural heritage in Grisons is Ruinaulta - a gorge through the biggest rock slide in Europe that took place some 10.000 years ago. It dammed the Rhine for a while, and as the dam broke, the river created a magnificent gorge well worth walking through! More info at ruinaulta.ch. Photo: Per StoremyrThe most spectacular piece of natural heritage in Grisons is Ruinaulta - a gorge through the biggest rock slide in Europe that took place some 10.000 years ago. It dammed the Rhine for a while, and as the dam broke, the river created a magnificent gorge well worth walking through! More info at ruinaulta.ch. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/08/05_brigels_dardin_cupmarks_small.jpgApart from famous Carschenna there are few real rock art sites in Grisons. But there is a wealth of prehistoric sites with cup marks (German: Schalensteine), such as this site called Grep Patnasa by Dardin near Brigels in Surselva. More info at Wikipedia and steinkreis.ch. Photo: Per StoremyrApart from famous Carschenna there are few real rock art sites in Grisons. But there is a wealth of prehistoric sites with cup marks (German: Schalensteine), such as this site called Grep Patnasa by Dardin near Brigels in Surselva. More info at Wikipedia and steinkreis.ch. Photo: Per Storemyr2012-08-17T00:34:02+00:00monthlyhttps://per-storemyr.net/2012/07/05/good-stone-doesnt-change-its-location/https://per-storemyr.net/wp-content/uploads/2012/07/nidaros1.jpgNidaros Cathedral in Trondheim (middle). Quite possibly a cult centre, or central place, since the Iron Age. Photo: Per StoremyrNidaros Cathedral in Trondheim (middle). Quite possibly a cult centre, or central place, since the Iron Age. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/07/carrara1.jpgModern quarries at Carrara. But the quarries have a history 3000 years back to the Etruscan period. Photo: Per StoremyrModern quarries at Carrara. But the quarries have a history 3000 years back to the Etruscan period. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/07/oye1.jpgThe 12th century greenschist quarry at Øysanden, 17 km south of Trondheim. It was used for building Nidaros cathedral, but did it have a history beyond the Middle Ages?The 12th century greenschist quarry at Øysanden, 17 km south of Trondheim. It was used for building Nidaros cathedral, but did it have a history beyond the Middle Ages?2012-07-05T12:22:29+00:00monthlyhttps://per-storemyr.net/2012/05/01/the-palaeolithic-rock-art-in-wadi-abu-subeira-egypt-landscape-archaeology-threats-and-conservation/https://per-storemyr.net/wp-content/uploads/2012/04/subeira_rock_art_truck.jpg...and also the current rock art in Subeira is a testimony to what is important in the daily life of people. Photo: Per Storemyr...and also the current rock art in Subeira is a testimony to what is important in the daily life of people. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_happy_hippo.jpgThe Late Palaeolithic happy hippo in Wadi Abu Subeira. Photo: Per StoremyrThe Late Palaeolithic happy hippo in Wadi Abu Subeira. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_lansdcape_wadi_mouth.jpgThe mouth of Wadi Abu Subeira, looking east into the wadi. Photo: Per StoremyrThe mouth of Wadi Abu Subeira, looking east into the wadi. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_landscape_from_east.jpgDespite modern activity, Wadi Abu Subeira, here seen towards west, is still a place with Upper Egyptian desert beauty. The stone lines in the foreground belong to an ancient trap for hunting. Photo: Per StoremyrDespite modern activity, Wadi Abu Subeira, here seen towards west, is still a place with Upper Egyptian desert beauty. The stone lines in the foreground belong to an ancient trap for hunting. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/cas-6_clay_mining_development_2002_2005.jpgUntil now the richest site of Late Palaeolithic rock art in Subeira, CAS-6 was subject to a failed attempt at clay mining between 2002 and 2005, before it was discovered in 2006. Note the road up the hillside. Google Earth imagery.Until now the richest site of Late Palaeolithic rock art in Subeira, CAS-6 was subject to a failed attempt at clay mining between 2002 and 2005, before it was discovered in 2006. Note the road up the hillside. Google Earth imagery.https://per-storemyr.net/wp-content/uploads/2012/04/subeira_ababda_cap_1980s_seidlmayer.jpgCampsite of Ababda Bedouins in Wadi Abu Subeira in the early 1980s. The rock art site CAS-6 is in the background. Photo: Stephan Seidlmayer, with thanks.Campsite of Ababda Bedouins in Wadi Abu Subeira in the early 1980s. The rock art site CAS-6 is in the background. Photo: Stephan Seidlmayer, with thanks.https://per-storemyr.net/wp-content/uploads/2012/04/subeira_overview.jpgThe 60 km long Wadi Abu Subeira and its location in Upper Egypt. Late Palaeolithic rock art sites are marked with green. The current iron mineral mining concessions in Subeira with red.The 60 km long Wadi Abu Subeira and its location in Upper Egypt. Late Palaeolithic rock art sites are marked with green. The current iron mineral mining concessions in Subeira with red.https://per-storemyr.net/wp-content/uploads/2012/04/subeira_gallery_181.jpgThis picture is symbolic for the cooperation between archaeologists and the mining industry at Subeira. Photo: Adel KelanyThis picture is symbolic for the cooperation between archaeologists and the mining industry at Subeira. Photo: Adel Kelanyhttps://per-storemyr.net/wp-content/uploads/2012/04/subeira_landscape1.jpgDespite modern activities, Subeira is still a place with Upper Egyptian beauty. Adel Kamel (left) and Adel Kelany documenting Late Palaeolithic rock art at CAS-6. Photo: Per StoremyrDespite modern activities, Subeira is still a place with Upper Egyptian beauty. Adel Kamel (left) and Adel Kelany documenting Late Palaeolithic rock art at CAS-6. Photo: Per Storemyrhttps://per-storemyr.net/wp-content/uploads/2012/04/eeaa_protectorates_egypt.gifCurrent nature protectorates in Egypt. Could Wadi Abu Subeira enter this list? Source: Egyptian Environmental Affairs AgencyCurrent nature protectorates in Egypt. Could Wadi Abu Subeira enter this list? Source: Egyptian Environmental Affairs Agency2012-07-04T23:28:30+00:00monthlyhttps://per-storemyr.net/2011/04/14/the-late-palaeolithic-rock-art-at-qurta-egypt-field-season-2011/https://per-storemyr.net/wp-content/uploads/2011/04/wouter_drawing.jpgWouter Claes documenting uncovered Late Palaeolithic rock artWouter Claes documenting uncovered Late Palaeolithic rock arthttps://per-storemyr.net/wp-content/uploads/2011/04/qurta_qi_e.jpgVarious lines and rubbed depressions were among the new finings at Qurta in March 2011Various lines and rubbed depressions were among the new finings at Qurta in March 2011https://per-storemyr.net/wp-content/uploads/2011/04/qurta_qi_2.jpgOne of the Late Palaeolithic rock art panels at Qurta (in the middle). At both sides of the panel modern quarrying took place in the 1960s, but according to old photos it did not touch the panelOne of the Late Palaeolithic rock art panels at Qurta (in the middle). At both sides of the panel modern quarrying took place in the 1960s, but according to old photos it did not touch the panelhttps://per-storemyr.net/wp-content/uploads/2011/03/qurta_excavation.jpgExcavation at Qurta in March 2011 revealed panels covered by sand, which can be used to obtain a minimum age of the rock art using OSL.Excavation at Qurta in March 2011 revealed panels covered by sand, which can be used to obtain a minimum age of the rock art using OSL.2012-04-23T02:14:00+00:00monthlyhttps://per-storemyr.net/2012/04/06/for-those-who-didnt-really-get-the-levallois-technique/https://per-storemyr.net/wp-content/uploads/2012/04/core_subeira.jpgcore_subeira2012-04-06T22:49:11+00:00monthlyhttps://per-storemyr.net/2011/11/22/standing-at-the-edge-of-the-abyss-the-castle-ruin-at-cartatscha-in-graubunden-switzerland/https://per-storemyr.net/wp-content/uploads/2011/11/st_benedict_somvix2.jpgSt. Benedict medieval church in Somvix was almost wiped out by an avalanche in 1984. Imagine an inferno of snow tumbling down the valley at left!St. Benedict medieval church in Somvix was almost wiped out by an avalanche in 1984. Imagine an inferno of snow tumbling down the valley at left!https://per-storemyr.net/wp-content/uploads/2011/11/trun_20051.jpgLooking down the Punteglias valley towards Trun in Vorderrheintal. Note the large basin, built to protect the village from avalanches and the like. The red arrow points towards the Cartatscha medieval castle ruin.Looking down the Punteglias valley towards Trun in Vorderrheintal. Note the large basin, built to protect the village from avalanches and the like. The red arrow points towards the Cartatscha medieval castle ruin.https://per-storemyr.net/wp-content/uploads/2011/11/schwarzenstein_from_brigels_20041.jpgSchwarzenstein medieval castle ruin, protected at the top of the cliff at the left, with a major rock slide , which took place in June 2002, at the right. Seen from Brigels south across Vorderrheintal towards ObersaxenSchwarzenstein medieval castle ruin, protected at the top of the cliff at the left, with a major rock slide , which took place in June 2002, at the right. Seen from Brigels south across Vorderrheintal towards Obersaxenhttps://per-storemyr.net/wp-content/uploads/2011/11/flims_conn1.jpgRuinaulta or the Rhine gorge, cutting through 10 cubic kilometres of rock debris from the Flims rockslide. Photo by Adrian Michael, from http://en.wikipedia.org/wiki/File:Flims_Conn.jpgRuinaulta or the Rhine gorge, cutting through 10 cubic kilometres of rock debris from the Flims rockslide. Photo by Adrian Michael, from http://en.wikipedia.org/wiki/File:Flims_Conn.jpghttps://per-storemyr.net/wp-content/uploads/2011/11/cartatscha2_20111.jpgThe Cartatscha ruin at sunset on a November day in 2011, looking southThe Cartatscha ruin at sunset on a November day in 2011, looking southhttps://per-storemyr.net/wp-content/uploads/2011/11/cartatscha2_20051.jpgThe Cartatscha ruin: High up on an eroding end moraine deposited by the Punteglias glacierThe Cartatscha ruin: High up on an eroding end moraine deposited by the Punteglias glacierhttps://per-storemyr.net/wp-content/uploads/2011/11/cartatscha1_20111.jpgCartatscha - a stout ruin with a fantastic masonry (south wall)Cartatscha - a stout ruin with a fantastic masonry (south wall)https://per-storemyr.net/wp-content/uploads/2011/11/cartatscha1_20061.jpgThe Cartatscha ruin from the south, 2005. Eroding edge as seen from the erratic block visible in the picture aboveThe Cartatscha ruin from the south, 2005. Eroding edge as seen from the erratic block visible in the picture abovehttps://per-storemyr.net/wp-content/uploads/2011/11/cartatscha1_20051.jpgAt the edge of the abyss: the Cartatscha ruin by Trun in Surselva, Graubünden, SwitzerlandAt the edge of the abyss: the Cartatscha ruin by Trun in Surselva, Graubünden, Switzerlandhttps://per-storemyr.net/wp-content/uploads/2011/11/cartatscha_poeschel_19301.jpgThe Cartatscha ruin from the south, probably in the 1920s. No sign of erosion. Photo from Erwin Poeschel, "Das Burgenbuch von Graubünden" (1930). Note the erratic block in the foregroundThe Cartatscha ruin from the south, probably in the 1920s. No sign of erosion. Photo from Erwin Poeschel, "Das Burgenbuch von Graubünden" (1930). Note the erratic block in the foreground2012-03-26T16:19:08+00:00monthlyhttps://per-storemyr.net/2011/12/23/merry-christmas-and-happy-new-year/https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_8.jpgMerryChristmas2011_8https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_5.jpgMerryChristmas2011_5https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_4.jpgMerryChristmas2011_4https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_3.jpgMerryChristmas2011_3https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_2.jpgMerryChristmas2011_2https://per-storemyr.net/wp-content/uploads/2011/12/merrychristmas2011_1.jpgMerryChristmas2011_12012-03-19T23:36:24+00:00monthlyhttps://per-storemyr.net/2011/12/16/steinriket-bomlo-nettsted-om-steinbrytning-i-10-000-ar/https://per-storemyr.net/wp-content/uploads/2011/12/urda_klebersteinsbrudd.jpgSpor etter middelalderens uttak av stein i Urda kleberbrudd ved LyklingSpor etter middelalderens uttak av stein i Urda kleberbrudd ved Lyklinghttps://per-storemyr.net/wp-content/uploads/2011/12/siggjo_youtube.jpgKlikk for å se film om SiggjoKlikk for å se film om Siggjohttps://per-storemyr.net/wp-content/uploads/2011/12/moster_kirke.jpgMoster gamle kirke - en av landets eldste steinkirkerMoster gamle kirke - en av landets eldste steinkirkerhttps://per-storemyr.net/wp-content/uploads/2011/12/hespriholmen_youtube.jpgKlikk for å se film om HespriholmenKlikk for å se film om Hespriholmen2011-12-20T08:58:04+00:00monthlyhttps://per-storemyr.net/2011/10/17/the-mauerzahn-at-grunenfels-castle-ruin-ch-revisited-after-massive-snowfall/https://per-storemyr.net/wp-content/uploads/2011/10/surselva_winter_october_2011.jpgAfter two days sun comes out and reveals a sparkling white-green winter wonderlandAfter two days sun comes out and reveals a sparkling white-green winter wonderlandhttps://per-storemyr.net/wp-content/uploads/2011/10/gruenenfels_october_2011_detail1.jpgTop of the Mauerzahn (pinnacle) at Grünenfels castle ruin as the snow had largely melted awayTop of the Mauerzahn (pinnacle) at Grünenfels castle ruin as the snow had largely melted awayhttps://per-storemyr.net/wp-content/uploads/2011/10/gruenenfels_october_2011.jpgThe Mauerzahn (pinnacle) at Grünenfels stands boldly after most of the snow has melted awayThe Mauerzahn (pinnacle) at Grünenfels stands boldly after most of the snow has melted awayhttps://per-storemyr.net/wp-content/uploads/2011/10/brigels_winter_october_2011_cow.jpgSnow starts to fall while the cattle wonder when they will be taken to their stablesSnow starts to fall while the cattle wonder when they will be taken to their stableshttps://per-storemyr.net/wp-content/uploads/2011/10/brigels_winter_october_2011.jpgSnowfall intensifies - best to keep indoors!Snowfall intensifies - best to keep indoors!2011-10-17T16:15:16+00:00monthlyhttps://per-storemyr.net/2011/06/20/a-google-map-of-the-northern-faiyum-desert/2011-09-12T22:29:39+00:00monthlyhttps://per-storemyr.net/2011/05/19/egyptian-petition-stop-destruction-of-lake-qarun-protected-area-in-the-faiyum/https://per-storemyr.net/wp-content/uploads/2011/05/widan_el_faras_qatrani.jpgThe spectacular landscape at the Old Kingdom basalt quarries at Widan el-Faras in the Northern FaiyumThe spectacular landscape at the Old Kingdom basalt quarries at Widan el-Faras in the Northern Faiyumhttps://per-storemyr.net/wp-content/uploads/2011/05/lake_qarun.jpgAt Lake Qarun towards Gebel Qatrani in the Northern FaiyumAt Lake Qarun towards Gebel Qatrani in the Northern Faiyum2011-09-12T22:24:43+00:00monthlyhttps://per-storemyr.net/2010/10/21/return-to-murals-in-the-archbishops-palace-trondheim/https://per-storemyr.net/wp-content/uploads/2010/10/regalia2010a.jpgConservation in the Regalia room, Archbishop's Palace (Trondheim) in 2010Conservation in the Regalia room, Archbishop's Palace (Trondheim) in 20102011-09-12T21:56:30+00:00monthlyhttps://per-storemyr.net/2010/10/21/cooperation-with-csc-conservation-science-consulting-fribourg/https://per-storemyr.net/wp-content/uploads/2010/10/collegialeneuchatel.jpgThe Collegiate church in Neuchâtel with its yellow Pierre jaune - the stone that characterises the city of NeuchâtelThe Collegiate church in Neuchâtel with its yellow Pierre jaune - the stone that characterises the city of Neuchâtel2011-09-12T21:53:42+00:00monthlyhttps://per-storemyr.net/2010/10/21/new-publications-2009-2010/2011-09-12T21:44:38+00:00monthlyhttps://per-storemyr.net/2010/10/21/new-quarries-discovered-in-central-norway/https://per-storemyr.net/wp-content/uploads/2010/10/marble_nidaros.jpgMarble floors in the octagon of Nidaros cathedral. The current floor is a reconstruction, but the old stones are stored on the gallery aboveMarble floors in the octagon of Nidaros cathedral. The current floor is a reconstruction, but the old stones are stored on the gallery abovehttps://per-storemyr.net/wp-content/uploads/2010/10/lenn1.jpgMarble under the mossMarble under the moss2011-09-12T21:43:18+00:00monthlyhttps://per-storemyr.net/2010/10/29/tufels-chilen-quarrying-in-the-church-of-the-devil/https://per-storemyr.net/wp-content/uploads/2010/10/wasserlehrpfad91.jpgSign at Devil's Church: How the tufff was formedSign at Devil's Church: How the tufff was formedhttps://per-storemyr.net/wp-content/uploads/2010/10/tuefelschilen3.jpgDetail of the terraces at Devil's ChurchDetail of the terraces at Devil's Churchhttps://per-storemyr.net/wp-content/uploads/2010/10/greatlangdale.jpgPrehistoric stone axe quarry at Great Langdale in CumbriaPrehistoric stone axe quarry at Great Langdale in Cumbriahttps://per-storemyr.net/wp-content/uploads/2010/10/tuefelschilen4.jpgThe little brook that sustains Devil's ChurchThe little brook that sustains Devil's Churchhttps://per-storemyr.net/wp-content/uploads/2010/10/zelltuff.jpgThe medieval church of Zell with painted calcareous tuff in the ribbed vault of the towers's chapelThe medieval church of Zell with painted calcareous tuff in the ribbed vault of the towers's chapelhttps://per-storemyr.net/wp-content/uploads/2010/10/tuffcloseup.jpgClose-up of the porous tuff from "Tüfels Chilen"Close-up of the porous tuff from "Tüfels Chilen"https://per-storemyr.net/wp-content/uploads/2010/10/tuefelschilen1.jpg"Tüfels Chilen" - a reamarkable calcareaous tuff quarry in Switzerland"Tüfels Chilen" - a reamarkable calcareaous tuff quarry in Switzerland2011-09-12T21:39:06+00:00monthlyhttps://per-storemyr.net/2010/11/15/stone-weathering-at-the-westernmost-coast-of-norway/https://per-storemyr.net/wp-content/uploads/2010/11/selja7.jpgTypical appearance of the olivine stone at Selja. Talc is present in the light-coloured veins that weather less rapidly than the red olivine matrixTypical appearance of the olivine stone at Selja. Talc is present in the light-coloured veins that weather less rapidly than the red olivine matrixhttps://per-storemyr.net/wp-content/uploads/2010/11/selja6.jpgTalc veins standing out from the olivine matrixTalc veins standing out from the olivine matrixhttps://per-storemyr.net/wp-content/uploads/2010/11/selja5.jpgSelja5https://per-storemyr.net/wp-content/uploads/2010/11/selja4.jpgThe east wall of the tower and simultaneously the west wall of the naveThe east wall of the tower and simultaneously the west wall of the navehttps://per-storemyr.net/wp-content/uploads/2010/11/selja3.jpg...and then the weather calmed down......and then the weather calmed down...https://per-storemyr.net/wp-content/uploads/2010/11/selja2.jpg...then came a blizzard......then came a blizzard...https://per-storemyr.net/wp-content/uploads/2010/11/selja1.jpgSelja abbey ruins during heavy rain in November 2010Selja abbey ruins during heavy rain in November 2010https://per-storemyr.net/wp-content/uploads/2010/11/1867_schiertz.jpgThe ruins in 1867. Drawing by SchiertzThe ruins in 1867. Drawing by Schiertz2011-09-12T21:36:21+00:00monthlyhttps://per-storemyr.net/2010/12/31/a-mauerzahn-at-grunenfels-castle-ruin-ch-will-it-survive-2011/https://per-storemyr.net/wp-content/uploads/2010/12/gruenenfels_2010c.jpgA masonry block fallen from the ruin with the leaning "Mauerzahn" in the backgroundA masonry block fallen from the ruin with the leaning "Mauerzahn" in the backgroundhttps://per-storemyr.net/wp-content/uploads/2010/12/gruenenfels_2010b.jpgThe outer part of the "Mauerzahn" with quoins made from green metaconglomerate (Verrucano)The outer part of the "Mauerzahn" with quoins made from green metaconglomerate (Verrucano)https://per-storemyr.net/wp-content/uploads/2010/12/gruenenfels_2010a.jpgGrünenfels 30 December 2010Grünenfels 30 December 2010https://per-storemyr.net/wp-content/uploads/2010/12/gruenenfels_2004_2010.jpgMonitoring of a part of ther masonry which shows small changes between 2004 and 2010Monitoring of a part of ther masonry which shows small changes between 2004 and 2010https://per-storemyr.net/wp-content/uploads/2010/12/gruenenfels_1962_2004.jpgThe "Mauerzahn" at Grünenfels in 1962 and 2009, with the red colour showing lost masonry. Source left image: Reworked from Clavadetscher & Meyer 1984The "Mauerzahn" at Grünenfels in 1962 and 2009, with the red colour showing lost masonry. Source left image: Reworked from Clavadetscher & Meyer 1984https://per-storemyr.net/wp-content/uploads/2010/12/friberg_trun_1911.jpgThe impressive "Mauerzahn" of the castle at Friberg by Trun in Surselva in 1911 before the collaps shortly after. Image source: Poeschel 1929.The impressive "Mauerzahn" of the castle at Friberg by Trun in Surselva in 1911 before the collaps shortly after. Image source: Poeschel 1929.2011-09-12T21:26:06+00:00monthlyhttps://per-storemyr.net/2011/01/10/cleopatras-needle-egyptian-concern-about-the-nyc-obelisk/https://per-storemyr.net/wp-content/uploads/2011/01/cleopatrasneedleny_1870s_2008.jpgCleopatrasNeedleNY_1870s_2008The current south face of the NY obelisk in Alexandria in the 1870s and in Central Park in 2008. Very little weathering has taken place over these c. 140 years. Note that the current west face is more weathered. Images are enhanced. Sources: Flickr (Brooklyn Museum) and Wikipedia2011-09-12T21:23:50+00:00monthlyhttps://per-storemyr.net/2011/02/03/turmoil-in-egypt-the-cultural-heritage-situation/https://per-storemyr.net/wp-content/uploads/2011/02/dashur_view.jpgSeen from Saqqara to the pyramids at DashurSeen from Saqqara to the pyramids at Dashur2011-09-12T21:11:32+00:00monthlyhttps://per-storemyr.net/2011/02/09/the-late-palaeolithic-rock-art-in-wadi-abu-subeira-egypt/https://per-storemyr.net/wp-content/uploads/2011/02/lp_bovid_wadiabusubeira.jpgLate Palaeolithic bovid in Wadi Abu SubeiraLate Palaeolithic bovid in Wadi Abu Subeira2011-09-12T21:10:20+00:00monthlyhttps://per-storemyr.net/2011/03/24/ny-artikkel-om-gamle-steinbrudd-i-egypt/https://per-storemyr.net/wp-content/uploads/2011/03/aswan_old_and_new_quarries.jpgBaksiden av medaljen: Moderne steinbrytning i Aswan foregår i de faraoniske granittbruddene.Baksiden av medaljen: Moderne steinbrytning i Aswan foregår i de faraoniske granittbruddene.2011-09-12T21:03:43+00:00monthlyhttps://per-storemyr.net/2011/04/16/cooperation-with-norwegian-conservation-company/https://per-storemyr.net/wp-content/uploads/2011/04/tautra_munkeby_1994.jpgTautra (top) and Munkeby monastery ruins in the Trondheim regionTautra (top) and Munkeby monastery ruins in the Trondheim region2011-09-12T20:46:50+00:00monthlyhttps://per-storemyr.net/2011/05/14/where-does-the-stone-at-nidaros-cathedral-come-from/https://per-storemyr.net/wp-content/uploads/2011/05/westfront1.jpgPart of the restored west front at Nidaros Cathedral - adorned with marble columnsPart of the restored west front at Nidaros Cathedral - adorned with marble columnshttps://per-storemyr.net/wp-content/uploads/2011/05/nidaros_s.jpgThe south side of Nidaros Cathedral - the northernmost medieval cathedral in Europe. It is mainly built from soft metamorphic stone like soapstone and greenschist.The south side of Nidaros Cathedral - the northernmost medieval cathedral in Europe. It is mainly built from soft metamorphic stone like soapstone and greenschist.https://per-storemyr.net/wp-content/uploads/2011/05/allmenningen1.jpgThe marble quarry at Allmenningen island, 140 km north of Trondheim, provided stone for Nidaros Catheral both in the Middle Ages and during the restoration that started in 1869.The marble quarry at Allmenningen island, 140 km north of Trondheim, provided stone for Nidaros Catheral both in the Middle Ages and during the restoration that started in 1869.2020-01-08T02:25:26+00:00monthlyhttps://per-storemyr.netdaily1.02026-04-02T11:38:33+00:00