Geologic unit found in the Illinois Basin, U.S.
Pope Mega Group |
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Type | Geological group |
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Sub-units |
- Grove Church Shale
- Kincaid
- Goreville Limestone
- Cave Hill Shale
- Negli Creek Limestone
- Degonia Sandstone
- Clore Limestone
- Ford Station Limestone
- Tygett Sandstone
- Cora Limestone
- Palestine Sandstone
- Menard Limestone
- Allard Limestone
- Scottsburg Limestone
- Walche Limestone
- Waltersburg Formation
- Vienna Limestone
- Tar Springs Sandstone
- Glen Dean Formation
- Hardinsburg Formation
- Haney Formation
- Fraileys Formation
- Beech Creek Formation
- Cypress Formation
- Ridenhower Formation
- Reelsville Member
- Sample Member
- Beaver Bend Member
- Bethel Formation
- Downeys Bluff Formation
- Yankeetown Formation
- Renault Formation
- Shellersville Member
- Levias Member
- Aux Vases Formation
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Overlies | Mammoth Cave Group |
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Primary | Sandstone, Limestone, Shale |
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Region | Illinois Basin |
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Country | United States of America |
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The Pope Mega Group is a geologic unit found in the Illinois Basin of southern Illinois, southwestern Indiana, and western Kentucky.[1][2] In Indiana and Kentucky its equitant is the Buffalo Wallow Group. This unit grades from sandstones at its base into mix of limestones and sandstone and then a shale at its top.[3] In Southern Illinois oil wells are drilled into the Tar Springs formation.[4]
- ^ Stamm, N. 2020b, Geologic Unit: Menard, National Geologic Map Database, Geolex, United States Geological Survey, Reston, Virginia.
- ^ Willman, H.B., Atherton, Elwood, Buschbach, T.C., Collinson, Charles, Frye, J.C., Hopkins, M.E., Lineback, J.A., and Simon, J.A., 1975, Handbook of Illinois stratigraphy: Illinois Geological Survey Bulletin, no. 95, 261 p.
- ^ Kolata, D.R. 2005, Bedrock Geology of Illinois: Champaign, Ill. U.S. Geological Survey (Report). Retrieved 16 December 2023.
- ^ Askari, Zohreh; Lasemi, Yaghoob (16 December 2022). "Geological characterization and ROZ potential of the Tar Springs Sandstone". U.S. Department of Energy Office of Scientific and Technical Information.