File:Scallops (River Hall, Mammoth Cave, Kentucky, USA) 1 (19551042694).jpg
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DescriptionScallops (River Hall, Mammoth Cave, Kentucky, USA) 1 (19551042694).jpg |
Scallops developed on Mississippian limestone in a Kentucky cave, USA. The wavy features shown here are scallops - asymmetrical, curvilinear, ridge-like, dissolutional features formed by flowing water. They somewhat resemble asymmetrical ripple marks, in that they form in a one-directional current, and the short side of each scallop represents the downstream direction. These examples are on a limestone surface in River Hall in western Kentucky's Mammoth Cave, the longest cave on Earth. The system has 412 mapped miles, as of fall 2017. Larger, longer scallops formed in slower-moving water. Smaller, shorter scallops formed in rapidly-moving water. Stratigraphy: lower Fredonia Member, basal Ste. Genevieve Limestone, upper Middle Mississippian Locality: River Hall (Level E), Mammoth Cave, western Kentucky, USA |
Date | |
Source | Scallops (River Hall, Mammoth Cave, Kentucky, USA) 1 |
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@N05/19551042694. It was reviewed on 13 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
13 October 2019
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current | 17:43, 13 October 2019 | 956 × 635 (82 KB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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