Phosphoria Formation (WYPp;0)

PHOSPHORIA FORMATION AND RELATED ROCKS--Thrust Belt: Upper part is dark- to light-gray chert and shale with black shale and phosphorite at top; lower part is black shale, phosphorite, and cherty dolomite; north Wyoming: Brown sandstone and dolomite, cherty phosphatic and glauconitic dolomite, phosphatic sandstone and dolomite, and greenish-gray to black shale. Intertonguing equivalents of parts of Phosphoria are Park City Formation (primarily cherty dolomite, limestone, and phosphatic gray shale) and Shedhorn Sandstone.

State	Wyoming
Name	Phosphoria Formation
Geologic age	Phanerozoic \| Paleozoic \| Permian
Original map label	Pp
Primary rock type	shale
Secondary rock type	phosphorite
Other rock types	sandstone; chert; dolostone (dolomite)
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale Minor Sedimentary > Chemical > Phosphorite Sedimentary > Clastic > Sandstone Sedimentary > Carbonate > Dolostonein part glauconitic Sedimentary > Chemical > Chert Incidental Sedimentary > Carbonate > Limestone
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	Fremont - Hot Springs - Lincoln - Natrona - Sublette - Teton - Washakie