Pierre Shale (WYKp;0)

State	Wyoming
Name	Pierre Shale
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Late
Original map label	Kp
Primary rock type	shale
Secondary rock type	mixed clastic/volcanic
Other rock types
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale Minor Sedimentary > Clastic > Mudstone > Claystone > Bentonite
Map references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Unit references	Love, J.D. and Christiansen, Ann Coe, 1985, Geologic Map of Wyoming: U.S. Geological Survey. [http://pubs.er.usgs.gov/publication/ofr83802]
Geographic coverage	Campbell - Crook - Laramie - Niobrara - Weston