Exhumed folds in coal mine. If you brought undergrads here, what exercises would you do so they better comprehend structure/tectonics? http://pic.twitter.com/eVUOpOq2PR
— Steve Hubbard (@the_subtender) August 28, 2017
via Twitter https://twitter.com/the_subtender
August 29, 2017 at 03:57AM
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