Normal fault from Ptolemais, Greece.

Normal fault from Ptolemais, Greece.

Amazing Geology: Argentina, Salta, Cafayate.

Amazing Geology: Argentina, Salta, Cafayate.

The Rainbow Mountains in Peru very Amazing | Geology IN

The Rainbow Mountains in Peru very Amazing | Geology IN

Perfect hexagonal columnar joint basalt rocks , giants causeway, Ireland

Perfect hexagonal columnar joint basalt rocks , giants causeway, Ireland

Geologic Folds in the Lower Ugab valley in Namibia - photo from northseattle.edu--- Wow!

Geologic Folds in the Lower Ugab valley in Namibia - photo from northseattle.edu--- Wow!

The Art of Rock Folding by Ern Mainka--Geological rock folding in sedimentary layers on beach coastline, Croajingalong National Park, Victoria, Australia. Approx 5×3 foot section shown.

The Art of Rock Folding by Ern Mainka--Geological rock folding in sedimentary layers on beach coastline, Croajingalong National Park, Victoria, Australia. Approx 5×3 foot section shown.

basalt. Reminds me of what I would have seen at Devil's Postpile if the road hadn't still been closed due to snow in May!

basalt. Reminds me of what I would have seen at Devil's Postpile if the road hadn't still been closed due to snow in May!

Recumbent chevron folds in Early Pennsylvania graywacke and shale of the Bude Formation at Millook Havem on the north coast of Cornwall, southwestern Britain, record the development and deformation of the Varsican foreland basin -- testifying to the closure of the Rheic Ocean during the mid- to Late Pennsylvanian Variscan orogeny. From: GSA Today, Vol. 18, No. 12 (Dec.2009)

Recumbent chevron folds in Early Pennsylvania graywacke and shale of the Bude Formation at Millook Havem on the north coast of Cornwall, southwestern Britain, record the development and deformation of the Varsican foreland basin -- testifying to the closure of the Rheic Ocean during the mid- to Late Pennsylvanian Variscan orogeny. From: GSA Today, Vol. 18, No. 12 (Dec.2009)

Coal Seams, they stretch on for 20 mi. Usibelli Coal Mine, Healy, AK, in the mtns of the Alaska Range

Coal Seams, they stretch on for 20 mi. Usibelli Coal Mine, Healy, AK, in the mtns of the Alaska Range

Sedimentary layers fold dramatically toward the ocean in Kejser Franz Joseph Fjord, Greenland

Sedimentary layers fold dramatically toward the ocean in Kejser Franz Joseph Fjord, Greenland

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