File:Bishop Tuff over Sherwin Till with clastic dikes (Pleistocene; Sherwin Summit, Owens Valley, California, USA) 8.jpg
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| Description |
English: Rhyolitic pumice & ash over glacial till with clastic dikes in the Pleistocene of California, USA.
The outcrop in the upper half of the photo consists of an upper 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 weathered-out material is principally rhyolitic pumice. At left is an underlying glacial unit called the Sherwin Till (it really is a glacial till) of undetermined Pleistocene age (~760 ka to ~2.5 Ma ?). 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/47445767@N05/49088773302/ |
| 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@N05/49088773302. 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. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:25, 15 November 2022 | | 3,008 × 1,166 (3.12 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/49088773302/ with UploadWizard |
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