File:Quartzose sandstone (Berea Sandstone, Upper Devonian to Lower Mississippian; Rocky Fork, Gahanna, Ohio, USA) 1 (34592320406).jpg
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Summary
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| Description |
Sandstone from the Paleozoic of Ohio, USA. Sandstone is the second-most common sedimentary rock on Earth. It is composed of sand-sized grains, which are between 2 millimeter and 1/16 of a millimeter in size each. Most sandstones are dominated by quartz grains, but feldspar sand grains and lithic sand grains (= sand-sized rock fragments) are often present as well. This sample is from the Berea Sandstone of Ohio. It caps a coarsening-upward succession that starts with the Olentangy Shale, followed by the Ohio Shale, the Bedford Shale, and the Berea Sandstone. The Ohio Shale and Bedford Shale are Famennian in age (= upper Upper Devonian). Traditionally, the Bedford and the Berea have been considered as Lower Mississippian. The Berea is now known to be Famennian (~latest Devonian), based on palynomorph microfossils. The Devonian-Mississippian boundary may lie within the Berea Sandstone. A Kinderhookian-aged conulariid has been found in the basal part of the overlying Sunbury Shale. The Berea Sandstone has been quarried as building stone in northeastern Ohio. Stratigraphy: Berea Sandstone, upper Famennian Stage to lower Kinderhookian Stage (?), upper Upper Devonian to lower Lower Mississippian (?) Locality: float piece in stream adjacent to cliffs along Rocky Fork, just north of Havens Corners Road & just east of Hamilton Road & just south of Clark Road, Gahanna, western Jefferson Township, northeastern Franklin County, central Ohio, USA |
| Date | |
| Source | Quartzose sandstone (Berea Sandstone, Upper Devonian to Lower Mississippian; Rocky Fork, Gahanna, Ohio, USA) 1 |
| Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/34592320406 (archive). It was reviewed on 6 December 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 | 03:13, 6 December 2019 | | 3,501 × 2,146 (4.58 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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