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The geology of Oklahoma is characterized by Carboniferous rocks in the east, Permian rocks in the center and towards the west, and a cover of Tertiary deposits in the panhandle to the west. The panhandle of Oklahoma is also noted for its Jurassic rocks as well. Cretaceous sediments are found in the south east.
The earliest Carboniferous rocks sit conformably on top of the youngest Devonian in Illinois; Carboniferous rocks in the state are areally extensive, regionally very well-exposed, and form a large percentage of the state's bedrock. Illinois remained marine for much of the Carboniferous, with limestones making up most of the rock deposited ...
The Carboniferous (/ ˌ k ɑːr b ə ˈ n ɪ f ər ə s / KAR-bə-NIF-ər-əs) [6] is a geologic period and system of the Paleozoic era that spans 60 million years from the end of the Devonian Period 358.86 Ma (million years ago) to the beginning of the Permian Period, 298.9 Ma.
The division between Pennsylvanian and Mississippian comes from North American stratigraphy. In North America, where the early Carboniferous beds are primarily marine limestones, the Pennsylvanian was in the past treated as a full-fledged geologic period between the Mississippian and the Permian. In parts of Europe, the Mississippian and ...
The Morrow facies (body of rock with specific characteristics) was deposited in a complex of mixed siliciclastic (mostly silica bearing rock) and carbonate depositional environments. [5] The Morrow Formation is typically divided into two intervals: The Morrow clastics; The overlying Morrow limestones; Source: [6]
Carboniferous North America: geologic formations of the Carboniferous Period in Paleozoic Era North America See also the preceding Category:Devonian North America and the succeeding Category:Permian North America
Carboniferous United States: geologic formations of the Carboniferous Period, in Paleozoic Era United States, North America. See also the preceding Category:Devonian United States and the succeeding Category:Permian United States
Carboniferous: Hertha Formation: Carboniferous: Jefferson City Formation: Ordovician: Jordan Coal: Carboniferous: Kansas City Group/Cherryville Shale: Carboniferous: Kansas City Group/Dennis Formation: Carboniferous: Kansas City Group/Galesburg Shale: Carboniferous: Kansas City Group/Hertha Formation: Carboniferous: Kansas City Group/Iola ...