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White River Formation--Brule Member

WHITE RIVER FORMATION Brule Member--Pale-pink to white blocky tuffaceous claystone and lenticular sandstone. Locally includes the Upper Conglomerate Member (Twru).
State Wyoming
Name White River Formation--Brule Member
Geologic age Phanerozoic | Cenozoic | Tertiary | Oligocene
Primary rock type fine-grained mixed clastic
Secondary rock type medium-grained mixed clastic
Other rock types mixed clastic/volcanic
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Claystone (Tuffaceous)
Sedimentary > Clastic > Sandstone (Lense)
Minor
Sedimentary > Clastic > Conglomerate
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 - Laramie - Platte