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Limestone, sandstone, dolostone, and chert; Permian to Pennsylvanian marine epicontinental-basin deposits; southeastern Idaho;

Lower Permian to Lower Pennsylvanian chert, limestone, and sandstone of southern Idaho; subdivisions are (Ps, and PNs).
StateIdaho
NameLimestone, sandstone, dolostone, and chert; Permian to Pennsylvanian marine epicontinental-basin deposits; southeastern Idaho;
Geologic ageEarly Permian to Early Pennsylvanian
Original map labelPPNs; PPNc
CommentsWells Fm in the Preston 1o x 2o quad, Oquirrh Fm in the Pocatello 1o x 2o quad
Primary rock typelimestone
Secondary rock typesandstone
Other rock typesdolostone (dolomite); chert; siltstone; shale
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone (Bed)with limestone interbeds
Sedimentary > Carbonate > Limestone (Bed)with sandstone interbeds
Incidental
Sedimentary > Clastic > Mudstone > Shale (Bed)in Oquirrh Gp, Sublett Mtns, Pocatello quad
Sedimentary > Clastic > Siltstone (Bed)in Oquirrh Gp, Pocatello quad
Sedimentary > Chemical > Chert (Lense)chert in dolostone
Sedimentary > Carbonate > Dolostone (Bed)cherty dolostone in Wells Fm, Preston quad
Map references
Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000.
Unit references
Bond, J.G., Kauffman, J.D., Miller, D.A., and Venkatakrishnan, Ramesh, 1978, Geologic map of Idaho: Moscow, Idaho, Idaho Bureau of Mines and Geology, with contributions from U.S. Geological Survey, scale 1:500,000.
Oriel, S.S., and Platt, L.B., 1980, Geologic map of the Preston 1o x 2o quadrangle, southeastern Idaho and western Wyoming: U.S. Geological Survey Miscellaneous Investigations Series, Map I-1127, scale 1:250,000.
Geographic coverageBannock - Bear Lake - Bingham - Bonneville - Caribou - Cassia - Madison - Oneida - Power - Teton - Twin Falls

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