File:Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Clinton Furnace Road roadcut, south-southeast of Lyra, Ohio, USA) 3 (37257522730).jpg
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| Description |
Limestone in the Pennsylvanian of Ohio, USA. (geology hammer for scale) The Pottsville Group is a Pennsylvanian-aged cyclothemic succession containing 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 Limestone horizon (?). This is a view of weathered and crack surfaces of the Lower Mercer Limestone, a Middle Pennsylvanian-aged, laterally persistent, marine limestone unit in the Pottsville Group of eastern Ohio, USA. It is richly fossiliferous, principally dominated by brachiopods and crinoid stems. This is the southernmost occurrence of Lower Mercer Limestone I have ever seen. Stratigraphy: Lower Mercer Limestone, Pottsville Group, lower Atokan Stage, lower Middle Pennsylvanian Locality: talus block along the northern side of Clinton Furnace Road, ~0.1 miles east of the Monroe Road-Clinton Furnace Road intersection, south-southeast of the town of Lyra, southeastern Scioto County, far-southern Ohio, USA |
| Date | |
| Source | Fossiliferous limestone (Lower Mercer Limestone, Middle Pennsylvanian; Clinton Furnace Road roadcut, south-southeast of Lyra, Ohio, USA) 3 |
| 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@N05/37257522730 (archive). It was reviewed on 8 October 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 | 12:08, 8 October 2019 | | 3,000 × 4,000 (6.54 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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