File:Bowtie Arch (west of Moab, Utah, USA) 19.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 Bowtie Arch, a pothole-type natural arch. It is not in Arches National Park, which is located northeast of here. Stratigraphy: Navajo Sandstone, Glen Canyon Group, Lower Jurassic Locality: Bowtie Arch, north of Bootlegger Canyon & east of the Colorado River, west of the town of Moab, eastern Utah, USA (38° 34' 50.03" North latitude, 109° 37' 18.04" West longitude) |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/52492470584/ |
| 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@N05/52492470584. 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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 04:19, 13 November 2022 | | 4,000 × 3,000 (3.09 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52492470584/ with UploadWizard |
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