File:Corona Arch (west of Moab, Utah, USA) 15.jpg
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| Description |
English: Natural arch developed in Jurassic sandstones in Utah, USA.
These are eolian sandstones of the Navajo Sandstone, a thick, Mesozoic-aged unit representing ancient sand dune deposits. The Navajo is a prominent cliff-forming unit in much of western America. The coloration is from hematite (Fe2O3 - iron oxide). Laterally-equivalent units are known by other names, but are all the same deposit: Glen Canyon Sandstone, Nugget Sandstone, and Aztec Sandstone. Rock arches are rare features - they form by differential weathering and erosion of many different types of rocks, but often sandstone. If a creek or river passes underneath, it is a natural bridge. If no creek or river is present, it is a natural arch. Along lakeshores and ocean coastlines, they are called lake arches and sea arches. Very small erosional openings in rocks are called windows. This example is Corona Arch, also known as Little Rainbow Bridge. It is not in Arches National Park, which is located northeast of here. Stratigraphy: Navajo Sandstone, Glen Canyon Group, Lower Jurassic Locality: Corona Arch, north of Bootlegger Canyon & east of the Colorado River, west of the town of Moab, eastern Utah, USA (38° 34' 47.66" North latitude, 109° 37' 12.35" West longitude) |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/52492634315/ |
| 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@N05/52492634315. It was reviewed on 13 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 04:21, 13 November 2022 | | 4,000 × 3,000 (5.23 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52492634315/ with UploadWizard |
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