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Bighorn Dolomite

BIGHORN DOLOMITE--Light-gray massive siliceous dolomite in northern Yellowstone area. Gray massive cliff-forming siliceous dolomite and locally dolomitic limestone in Thrust belt and northern Wyoming.
State Wyoming
Name Bighorn Dolomite
Geologic age Phanerozoic | Paleozoic | Ordovician-Middle Ordovician-Late
Primary rock type dolostone (dolomite)
Secondary rock type
Other rock types
Lithologic constituents
Major
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 Big Horn - Johnson - Park - Sheridan