← The rhyolite quarries at Bømlo in Norway: Traces of firesetting in the Neolithic

siggjo_neolithic_rhyolite_quarry (7)

By | Published October 11, 2015 | Full size is 850 × 563 pixels

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

Convex forms and surface-parallel spalling at the Siggjo rhyolite quarry: clear signs of firesetting. Photo by Per Storemyr

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