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White River Formation--Chadron Member

WHITE RIVER FORMATION Chadron Member--Light-gray to dark-red tuffaceous claystone, sandstone, and lenticular conglomerate.
StateWyoming
NameWhite River Formation--Chadron Member
Geologic agePhanerozoic | Cenozoic | Tertiary | Oligocene
Original map labelTwrc
Primary rock typefine-grained mixed clastic
Secondary rock typemedium-grained mixed clastic
Other rock typesmixed clastic/volcanic
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate (Lense)
Sedimentary > Clastic > Mudstone > Claystone (Tuffaceous)
Sedimentary > Clastic > Sandstone
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 coverageGoshen - Platte

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=WYTwrc;0
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