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Bear River Formation

BEAR RIVER FORMATION--Black shale, fine-grained brown sandstone, thin limestone, and bentonite beds.
StateWyoming
NameBear River Formation
Geologic agePhanerozoic | Mesozoic | Cretaceous-Early
Original map labelKbr
Primary rock typeshale
Secondary rock typesandstone
Other rock typeslimestone; bentonite
Lithologic constituents
Minor
Sedimentary > Clastic > Mudstone > Claystone > Bentonite
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Shale
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.
Geographic coverageLincoln - Sublette - Teton - Uinta

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