Blue Mesa Member

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The Blue Mesa Member is a member of the Chinle Formation. It is located in the Petrified Forest National Park of northeast Arizona.[1]

Quick facts Type, Unit of ...
Blue Mesa Member
Stratigraphic range: Late Triassic, early Norian 223–218 Ma
The Tepees, Petrified Forest National Park
Typemember
Unit ofChinle Formation
Lithology
Primarymudstone, sandstone
Location
RegionColorado Plateau
ExtentArizona, Utah
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Geology

The colorful bands of mudstone and sandstone were laid down during the Triassic, when the area was part of a huge tropical floodplain.[2]

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