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Guernsey Formation

GUERNSEY FORMATION--Blue-gray massive cherty limestone and dolomite. Locally includes unnamed dolomite and sandstone of Devonian and Cambrian(?) age.
State Wyoming
Name Guernsey Formation
Geologic age Phanerozoic | Paleozoic | Devonian-Late Carboniferous Mississippian-Early
Primary rock type limestone
Secondary rock type dolostone (dolomite)
Other rock types sandstone
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone
Sedimentary > Carbonate > Dolostone
Map references
Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey.
Unit references
Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey.
Counties Goshen - Niobrara - Platte