File:Fault slickenside (Great Smoky Mountains, Tennessee-North Carolina, USA) 1.jpg
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Summary
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| Description |
English: Faults are common in orogenic belts. They are defined as fractures or fracture systems 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. Normal faults form by extensional stress. Reverse faults form by compressional stress. The rock sample shown above has a fault plane surface with light-colored, mineralized crusts. Click on the photo to zoom in and look around - the fine top-to-bottom lines and striations are slickenlines, which indicate fault movement direction. The host rock appears to be sandstone (see the broken edges near the top of the picture). The specimen's provenance is uncertain - there is no sandstone outcrop adjacent to this spot. It is likely from the Neoproterozoic-aged Ocoee Supergroup. Locality: out-of-place rock at Newfound Gap, southern side of Rt. 441 (Newfound Gap Road), Great Smoky Mountains National Park, on the Tennessee-North Carolina border), USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/36860585292/ |
| 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@N05/36860585292. It was reviewed on 2 December 2020 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 | 15:38, 2 December 2020 | | 2,878 × 1,999 (6.42 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/36860585292/ with UploadWizard |
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