Ripple cross lamination with hematite in the 2.5 billion year banded iron formation at Paraburdoo, Pilbara, Australia. @ImperialRSM http://pic.twitter.com/J2URqbBrj5
— The Rock Library (@Rock_Library) July 10, 2017
via Twitter https://twitter.com/Rock_Library
July 11, 2017 at 05:11AM
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