File:Glen Canyon Sandstone (Upper Triassic-Lower Jurassic; near Elephant Toes Butte, Dinosaur National Monument, Utah, USA) 2 (48791485903).jpg
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Summary[edit]
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| Description |
Sandstone in the Mesozoic of Utah, USA. This is an outcrop of eolian sandstones in Dinosaur National Monument, Utah. It's locally called the Glen Canyon Sandstone, but it's the same unit as the Navajo Sandstone (elsewhere, it's called the Nugget Sandstone). The Navajo/Nugget/Glen Canyon is a thick quartzose sandstone succession with abundant cross-bedding. Cross-bedding refers to tilted layers between horizontal layers, and forms in a one-directional current by wind or water (in this case, wind). The sandstone is part of a sand dune deposit in an ancient, vast desert, or "sand sea", technically called an "erg". Stratigraphy: Glen Canyon Sandstone, Upper Triassic-Lower Jurassic Locality: near Elephant Toes Butte (view from Cub Creek Road), Dinosaur National Monument, northern Uintah County, northeastern Utah, USA See info. at: <a href="https://en.wikipedia.org/wiki/Dinosaur_National_Monument" rel="noreferrer nofollow">en.wikipedia.org/wiki/Dinosaur_National_Monument</a> |
| Date | |
| Source | Glen Canyon Sandstone (Upper Triassic-Lower Jurassic; near Elephant Toes Butte, Dinosaur National Monument, Utah, USA) 2 |
| 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@N05/48791485903. It was reviewed on 8 October 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 | 00:39, 8 October 2019 | | 4,000 × 3,000 (7.36 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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