File:Navajo Sandstone over Kayenta Formation (Lower Jurassic; west of Moab, Utah, USA) 10.jpg

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English: Silciclastic sedimentary rocks in the Jurassic of Utah, USA.

The thick-bedded rocks in the upper part of the picture consist of eolian sandstones of the Navajo Sandstone, a thick, Mesozoic-aged unit representing ancient sand dune deposits. The coloration is from hematite (Fe2O3 - iron oxide). Laterally-equivalent units are known by other names, but are all the same deposit: Glen Canyon Sandstone, Nugget Sandstone, and Aztec Sandstone.

The thin-bedded rocks below the Navajo are redbeds of the Kayenta Formation, a mixed siliciclastics unit of mostly fluvial origin (= deposited in river systems).

Stratigraphy: Navajo Sandstone over Kayenta Formation, Glen Canyon Group, Lower Jurassic

Locality: view from Corona Arch Trail, below Corona Arch & north of Bootlegger Canyon, west of the town of Moab, eastern Utah, USA
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Source https://www.flickr.com/photos/47445767@N05/52496366839/
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/52496366839. It was reviewed on 15 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

15 November 2022

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