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Welcome!
I work with the geoarchaeology of old stone: quarries, monuments, rock art. And I try to figure out about their weathering, and conservation using traditional crafts. I also burn lime the traditional way. Many of my domestic services are managed through FABRICA, a registered Norwegian company established with good partners. On this website I publish articles on geology and cultural heritage. I don't use AI for text or images. For the joy of old stone! Per Storemyr
Visit FABRICA’s website!

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Recent posts
- The Côa Late Palaeolithic rock art in Portugal. A brief comparison with petroglyphs of similar age in Egypt
- Observations of tafoni at Costa Vicentina (Portugal)
- Tafoni in Tertiary shale at 2700 m in the Swiss Alps (Brigels, Graubünden)
- Kalkbrenning i Guédelon. Kalk til bygging av ny middelalderborg i Frankrike
- Tafoni-forvitring på holmer og skjær utenfor Tvedestrand
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SOAPSTONE! Book on its archaeology and history!

Book: The Stones of Nidaros Cathedral

Book: QuarryScapes

Category Archives: Weathering history
Cleopatra’s Needle: Egyptian concern about the NYC obelisk
A few days ago Secretary General Zahi Hawass of the Egyptian Supreme Council of Antiquities expressed grave concern about the condition of Cleopatra’s Needle of NYC and even threatened to take the obelisk back to Egypt if care is not … Continue reading
A Mauerzahn at Grünenfels castle ruin (CH): Surviving 2011?
Switzerland has a wealth of medieval castle ruins. In the Canton of Graübunden they are particularly numerous with, for example, the valley of Vorderrheintal (Surselva) displaying no less than about 50 ruins. Some are almost gone, others are kept in … Continue reading
Posted in Ruins, Switzerland, Weathering history
Tagged Graubünden, Grünenfels, historic photos, ruin, Surselva, Switzerland, weathering
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Cleopatra’s Needle: Tracing obelisk weathering with old photos
Historic photos are essential for research on monument weathering. With free internet access to archives, such photos are now easier to find than previously. Below, I will show the case of Cleopatra’s Needle, a famous Ancient Egyptian obelisk transferred to … Continue reading
Posted in Ancient Egypt, Archaeology, Monument conservation, Weathering history
Tagged Alexandria, Ancient Egypt, Aswan, Cleopatra's Needle, granite, Heliopolis, historic photos, London, Luxor, New York, obelisk, Paris, weathering
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Stone weathering at the westernmost coast of Norway
As probably one of only very few monuments globally, the ruined Selja medieval abbey off the westernmost coast of Norway is built from a metamorphic olivine stone (dunite) rich in talc. The combination of a hard olivine matrix and soft … Continue reading
Posted in Archaeology, Monument conservation, New projects, Norway, Ruins, Weathering history
Tagged conservation, historic photos, Norway, olivine, salt, Selja, weathering
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New publications 2009-2010
Though published some months ago, I would like to briefly present four of my most recent publications. Two derives from the EU QuarryScapes project, two from a conference last year in Trondheim about new research at Nidaros Cathedral.
