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17 April 2012
Strained Antietam Formation sandstone
I collected this sample the weekend before last on the Blue Ridge Thrust Fault field trip led by Alan Pitts. It’s a chunk of the Antietam Formation quartz sandstone, a Cambrian beach deposit. The face we photographed measures 15 cm by 12 cm. link It definitely looks best in full screen mode, so please feel encouraged to click through and explore it a bit. You’ll notice some great subtleties once …