File:Small faults in sandstone (Arches National Park, Utah, USA) 11 (8472329146).jpg

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Faulted sandstone in the Jurassic of Utah, USA.

Faults are fractures or fracture systems in rocks along which there has been differential displacement. Faults are produced by either extensional stress, compressional stress, or shear stress. Movement along faults is usually in the form of sudden jolts, which produces earthquakes.

Within Utah's Arches National Park, minor faults are abundant in certain places. Shown here is faulting in the Navajo Sandstone, an Early Jurassic sand dune deposit. Small-scale faults are common in this unit and appear to represent soft-sediment deformation structures involving slight collapse of dunes.

Stratigraphy: Navajo Sandstone, Lower Jurassic

Locality: Park Avenue, southern Arches National Park, eastern Utah, USA
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Source Small faults in sandstone (Arches National Park, Utah, USA) 11
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/8472329146 (archive). It was reviewed on 6 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

6 December 2019

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current03:55, 6 December 2019Thumbnail for version as of 03:55, 6 December 20193,008 × 2,000 (2.27 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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