Pseudotachylite (frictional melt formed during an EQ) in outcrop and in thin section covering both #TectonicTuesday and #ThinSectionThursday http://pic.twitter.com/P3aX2oYZp6
— tectonictweets (@tectonictweets) August 3, 2017
via Twitter https://twitter.com/tectonictweets
August 03, 2017 at 02:41PM
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