File:Bituminous coal (Upper Freeport Coal, Middle Pennsylvanian; Diamond Coal Mine, Linton, Ohio, USA) 7.jpg
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| Description |
English: Bituminous coal from the Pennsylvanian of Ohio, USA. (bedding plane view)
Bituminous coal is one of the "soft coals" - it is a higher rank coal than lignite or sub-bituminous and lower rank than anthracite. It is relatively soft, weathers and breaks into blocks, is moderately sooty to the touch, and is finely laminated. This sample is from the Upper Freeport Coal at Linton, Ohio. The shiny discoid structures at top and upper right are conchostracans - valves of "clam shrimp". They are preserved in fissile cannel coal that's adhering to the bituminous coal. The letter "C" indicates a bedding plane contact between cannel coal (below) and bituminous coal (above), both of which make up the Upper Freeport Coal interval in the Linton area. Stratigraphy: upper part of the Upper Freeport Coal (= Number 7 Coal), Allegheny Group, Middle Pennsylvanian Locality: Diamond Coal Mine, Linton, far-eastern Jefferson County, far-eastern Ohio, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/51119170845/ |
| 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@N05/51119170845. It was reviewed on 19 April 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 14:01, 19 April 2021 | | 4,000 × 2,439 (7.06 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/51119170845/ with UploadWizard |
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