File:Ferruginous limestone (Boggs Member, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 1 (28407249828).jpg
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Ferruginous limestone 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 reddish-colored material shown above is on the floor of the old/northern quarry of the Frazeyburg Pit in northwestern Muskingum County, Ohio. The rock is weathered and eroded from the Boggs Member, a relatively thin stratigraphic interval in the Pennsylvanian-aged Pottsville Group. The Boggs usually consists of marine fossiliferous limestones, dominated by brachiopods and crinoid ossicles. Significant lateral and vertical lithologic variations are present - the Boggs interval ranges from fossiliferous limestones to intraclastic limestones to cherts (flints) to dolostones. In places, it has a relatively high component of disseminated pyrite. In other places, it is relatively rich in black manganese oxide(s). Minerals observed in the Boggs Limestone interval: calcite, dolomite, glauconite, goethite, gypsum, limonite, pyrite, sphalerite, turgite, vivianite, wad. At the Frazeysburg Pit, the Boggs is principally a ferruginous fossiliferous limestone ("iron ore" in early 1900s literature). Clicking on these photos allows one to zoom in & often see individual fossils. This is a rare facies for the Boggs. The Frazeysburg Pit may be the only extant locality having Boggs "iron ore". Stratigraphy: Boggs Member, Pottsville Group, lower Atokan Stage, lower Middle Pennsylvanian Locality: old/northern 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’ 50.56” North latitude, 82° 07’ 23.60” West longitude) |
| Date | |
| Source | Ferruginous limestone (Boggs Member, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, 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@N05/28407249828 (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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| current | 12:09, 8 October 2019 | | 4,000 × 3,000 (5.65 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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