Mississippian and Pennsylvanian (Carboniferous) systems in the US - Wyoming
Lower Carboniferous strata of Wyoming (Mississippian to early middle Pennsylvanian) represent 2 marine depositional sequences separated by a period of epeirogenic uplift and erosion. The Mississippian part of the succession is a wedge that thickens northwestward from a zero edge in S.E. Wyoming; this wedge is disconformably overlain by predominantly thin-bedded terrigenous strata of the upper part of the succession. In W. Wyoming, the lower depositional sequence is represented by the Madison group, which includes the Mission Canyon and Lodgepole limestones. Throughout most of central Wyoming, the lower depositional sequence is represented by the Madison limestone, which includes 6 members, ranging from Kinderhookian to early Meramecian. In the Hartville uplift area of E. Wyoming, the lower depositional sequence is represented by the Guernsey formation, which consists of limestone and dolomitic limestone unconformably lying on Precambrian, Cambrian, and Ordovician rocks. Strata equivalent to the Madison limestone in the Black Hills include the Lower Mississippian Englewood formation (red and purple dolomite, limestone, and shale) and the Kinderhookian-to-Osagean Pahasapa limestone. 110 references.
- OSTI ID:
- 5633606
- Journal Information:
- U.S. Geol. Surv., Prof. Pap.; (United States), Journal Name: U.S. Geol. Surv., Prof. Pap.; (United States) Vol. 1110-U; ISSN XGPPA
- Country of Publication:
- United States
- Language:
- English
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ALKALINE EARTH METAL COMPOUNDS
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATE MINERALS
CARBONATE ROCKS
CARBONATES
DOLOMITE
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC HISTORY
GEOLOGY
LIMESTONE
MAGNESIUM CARBONATES
MAGNESIUM COMPOUNDS
MINERAL RESOURCES
MINERALS
MISSISSIPPIAN PERIOD
NATURAL GAS DEPOSITS
NORTH AMERICA
OXYGEN COMPOUNDS
PALEOZOIC ERA
PENNSYLVANIAN PERIOD
PETROLEUM DEPOSITS
RESOURCES
ROCKS
SEDIMENTARY ROCKS
SHALES
USA
WYOMING