File:Reverse fault in gyprock (Castile Formation, Upper Permian; State Line outcrop, southern Eddy County, New Mexico, USA) (15159863205).jpg
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Summary
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| Description |
Faulted gyprock from the Permian of New Mexico, USA. (field of view 2.4 centimeters across) Faults are quite common in orogenic belts. Faults are defined as fractures in rocks along which differential displacement has occurred. Dip-slip faults are those involving movement of rocks in non-horizontal directions. Strike-slip faults involve movement of rocks in horizontal directions. The two common types of dip-slip faults are normal faults and reverse faults. The rock shown above is a sample of gyprock (rock gypsum), consisting of interlaminated whitish gypsum and dark brown calcite. There is a small-scale reverse fault going through the center of the sample. Reverse faults result from compressional stress, and involve upward movement of the hanging wall and downward movement of the footwall. Stratigraphy: Castile Formation, upper Upper Permian Locality: State Line outcrop, roadcut on either side of Rt. 180/Rt. 62, between Carlsbad Caverns National Park and Guadalupe Mountains National Park, immediately north of the Texas border, southern Eddy County, southeastern New Mexico, USA (32° 00' 34.2" North latitude, 104° 29' 55.0" West longitude) |
| Date | |
| Source | Reverse fault in gyprock (Castile Formation, Upper Permian; State Line outcrop, southern Eddy County, New Mexico, USA) |
| 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@N05/15159863205. 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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:29, 6 December 2019 | | 1,030 × 680 (765 KB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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