File:Crinoids (Lower Mercer Shale, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) (42233713552).jpg
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Weathered fossiliferous shale in the Pennsylvanian of Ohio, USA. The Bowerston Shale Company was founded in the fall of 1929 by Samuel D. Milliken. They have brick manufacturing plants in Bowerston, Ohio and Hanover, Ohio. The Hanover plant makes bricks using rocks derived from two quarries that I know of - the Hanover Pit and the Frazeysburg Pit. I have visited the latter, with kind permission of the Bowerston company. The Frazeysburg Pit targets shales in the Pottsville Group. The shales are excavated and left in piles in the quarry to weather. Limestones and sandstones are excluded from the shale piles. Shale material is eventually trucked to the Hanover Plant, where it is processed into bricks. The medium gray shale pieces shown here are weathered from the Lower Mercer Shale, as exposed in the new/southern quarry of the Frazeyburg Pit in northwestern Muskingum County, Ohio. The Lower Mercer Shale sits directly atop the Lower Mercer Limestone, which is a widespread marine marker bed in the Pottsville Group of Ohio. Both units have marine fossils, dominated by brachiopods and crinoids. The loose fossils seen above are crinoid stem pieces. Classification: Animalia, Echinodermata, Crinoidea Stratigraphy: Lower Mercer Shale, Pottsville Group, lower Atokan Stage, lower Middle Pennsylvanian Locality: new/southern quarry, Frazeysburg Pit (Bowerston Shale Company), southern side of Clay Pit Road, ~1.7 air miles north of Frazeysburg, Jackson Township, northwestern Muskingum County, eastern Ohio, USA (40° 08’ 39.92” North latitude, 82° 07’ 19.07” West longitude) |
| Date | |
| Source | Crinoids (Lower Mercer Shale, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) |
| 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@N05/42233713552 (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 | |
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| current | 12:11, 8 October 2019 | | 4,000 × 3,000 (5.3 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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