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The Mazon Creek fossils are found in the Upper Carboniferous Francis Creek Shale. [6] The type locality is the Mazon River (or Mazon Creek), a tributary of the Illinois River near Morris, Grundy County, Illinois. The 25 to 30 meters of shale were formed approximately , during the Pennsylvanian period.
Map showing general location of the Bedford Shale in Ohio, northeastern Kentucky, and western Pennsylvania. The Bedford Shale in Ohio has been extensively studied since 1943, [23] and the 1954 study by Pepper, de Witt, and Demarest was still considered the classic study of the formation as late as 1991. [24]
The Cleveland Shale is a shale geologic formation in Ohio in the United States. The Cleveland Shale underlies much of northeast Ohio in beds of varying thickness. In northeast Ohio, the member does not appear east of the Grand River. [7] Measurements taken in northeast Ohio show the Cleveland Shale to be 7 feet (2.1 m) [7] to 100 feet (30 m ...
Kentucky, Ohio, Indiana. The Kope Formation is one of the three component bedrock formations of the Maquoketa Group that primarily consists of shale (75%) with some limestone (25%) interbedded. In general, it has a bluish-gray color that weathers light gray to yellowish-gray and it occurs in northern Kentucky, southwest Ohio, and southeast ...
Throughout the 1970s and 1980s, Kentucky led the US in coal production. A well drilled in 1819 in salt water, in the South Fork of the Cumberland River revealed the first indications of petroleum in Kentucky. A rush to produce paraffin from oil in the 1850s prompted discoveries in Clinton, Cumberland, Allen, Barren, Meade, Wayne and Russell ...
The Pohlsepia mazonensis fossil was found specifically in the Pit 11 region, within the Francis Creek Shale Member [7]. Like most soft tissue fossils found in Mazon Creek, it is preserved as a 2D light-on-dark discolouration of the matrix [8]. The Francis Creek Shale Member of the Carbon Formation has a diverse array of preserved plants and ...
The New Albany formation consists of brown, black, and green shale with minor beds of dolomite and sandstone. It was deposited under anoxic marine conditions. Pyrite is a common accessory mineral, and parts of the shale have greater than 4% by weight of organic carbon. The black shale layers have anomalously high radioactivity (due to uranium ...
The first map of Kentucky, presented in 1784 by author John Filson to the United States Congress [2]. Author, historian, founder and surveyor John Filson worked as a schoolteacher in Lexington, Kentucky and wrote The Discovery, Settlement and Present State of Kentucke in 1784.