Small hoodoos of the ?Petrified Forest Member of the Chinle Formation (~206 million years old) capped by fallen blocks of Wingate Sandstone (~200 million years old) in the Wolverine Petrified Forest, Grand-Staircase Escalante National Monument, Utah. The more durable sandstone blocks protect the underlying shales & mudstones from weathering as fast as in the uncovered areas, creating the pedestals under the blocks.

#geology #geoscience #utah #gsenm #triassic #jurassic #naturalhistory

Last updated 3 years ago

Luke MacNeil · @luke
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