File:Clastic Dyke in Bishop Tuff in California in USA 1.jpg
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Summary edit
| Description |
English: Clastic dike in the Bishop Tuff in California.
This outcrop consists of a volcanic unit called the Bishop Tuff (it's not really a volcanic tuff, however), a ~760,000 year old rhyolitic pyroclastic flow deposit. It was emplaced during a caldera-forming eruption of the nearby Long Valley Volcano. The base of the unit consists of air-fall rhyolite pumice beds. The overlying layers are pyroclastic flows having ash and pumice. The protruding, subvertical feature in the exposure is a clastic dike - a crack / fissure in the Bishop Tuff got filled in by sediments from above. In general, clastic dikes can also form from the bottom-up. Locality: Sherwin Summit (= Big Pumice Roadcut) - roadcut along the northern side of Route 395, immediately east of intersection with Lower Rock Creek Road (= Sherwin Grade; = Old Route 395), just east of the “town” of Tom’s Place, Owens Valley, Mono County, eastern California, USA (37° 33' 28.80" North latitude, 118° 39' 26.23" West longitude) |
| Date | |
| Source | https://www.flickr.com/photos/jsjgeology/49091485876/ |
| Author | James St. John (jsj1771) (https://www.flickr.com/people/jsjgeology/) |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Licensing edit
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49091485876 (archive). It was reviewed on 16 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 | 15:34, 16 December 2019 | | 2,000 × 3,008 (5.18 MB) | Alex Cohn (talk | contribs) | JPEG was recompressed between Flickr and Commons; on Flickr 5427344 bytes, on Commons 2633074 bytes. Uploading larger original from Flickr. |
| 18:56, 15 December 2019 |  | 2,000 × 3,008 (2.51 MB) | GeoWriter (talk | contribs) | User created page with UploadWizard |
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