File:Lowellville Limestone (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 2 (23275126133).jpg
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| Description |
Fossiliferous limestone in the Pennsylvanian of Ohio, USA. (geology hammer for scale) The bed shown above is the Lowellville Limestone, a marine horizon of fossiliferous limestone first described from Lowellville, Pennsylvania (the type locality). It has also been identified in outcrops in northeastern Ohio. It is correlative with the Poverty Run Limestone of eastern Ohio. The Lowellville Limestone is part of the Pottsville Group, a Pennsylvanian-aged cyclothemic succession in eastern Ohio that contains nonmarine shales, marine shales, siltstones, sandstones, coals, marine limestones, and chert ("flint"). The lower Pottsville dates to the late Early Pennsylvanian. The upper part dates to the early Middle Pennsylvanian. The Lower-Middle Pennsylvanian boundary is apparently somewhere near the Boggs Member (?). The Lowellville Limestone at the site shown above (= Beach City Dam outcrop in northwestern Tuscarawas County, Ohio) is medium grayish to gray-brown on weathered surfaces and very dark gray to black on crack surfaces. It is moderately fossiliferous, dominated by brachiopods. A medium-sized plant stem was also observed at this locality. The rocks here are gently folded and minor normal faulting is also present - probably relaxational structures. Stratigraphy: Lowellville Limestone, Pottsville Group, upper Lower Pennsylvanian Location: Beach City Dam outcrop - exposure on the southern side of Sugar Creek, immediately downstream from Beach City Dam, northern Franklin Township, northwestern Tuscarawas County, northeastern Ohio, USA (40° 38’ 06.71” North latitude, 81° 33’ 21.80” West longitude) |
| Date | |
| Source | Lowellville Limestone (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, 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@N05/23275126133. It was reviewed on 24 June 2017 by FlickreviewR 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 | 17:18, 24 June 2017 | | 4,000 × 3,000 (4.86 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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