Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyr
Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyr
← The rhyolite quarries at Bømlo in Norway: Traces of firesetting in the Neolithic
Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyr
Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyr