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Deposited Triassic Period (208 to 245 million years ago)
Depositional Environment Tropical tidal flat
Appearance Dark red-brown, ledge-forming sandstones and siltstones
Example Irregular slopes with ledges just above the White Rim Road at the Island in the Sky District of Canyonlands.
CANCEL
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Last Updated: July 01, 2011 at 10:03 MST