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23 November 2012
Friday fold: Chert chunk
Picked this one up the summer before last and took its portrait without recording too much else about it. There’s a small fault in there towards the bottom too. Sorry I forgot to mention it. My fault… Happy Friday! A light rock for “black Friday,” eh? Hope you had a happy Thanksgiving.

Callan Bentley is an assistant professor of geology at Northern Virginia Community College in Annandale, Virginia. He is particularly interested in structural geology and the evolution of the Appalachian mountain belt. Callan draws cartoons and writes for EARTH magazine. He lives in the Fort Valley of Virginia.









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