Carbonate mud, originally deposited in calm water, then violently ripped up to make mud-chip clasts & entombed in quartz sand (in some ancient high-energy event like a storm), lithified, broken by fractures (then healed as quartz veins), uplifted, & deferentially weathered: pic.twitter.com/hJPZ4mUS2O
— Callan Bentley (@callanbentley) July 27, 2019
via Twitter https://twitter.com/callanbentley
July 27, 2019 at 06:02PM
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