Wind River Formation and Indian Meadows Formations (WYTwim;0)

WIND RIVER AND INDIAN MEADOWS FORMATIONS. WIND RIVER FORMATION Central Wyoming (Twdr2)--Variegated claystone and sandstone; lenticular conglomerate. Age of tuff at top 49 Ma. INDIAN MEADOWS FORMATION (Twim)--Red to variegated claystone, sandstone, and algal-ball(?) limestone; some beds of large Paleozoic boulders and detachment masses of Paleozoic and Mesozoic rocks.

State	Wyoming
Name	Wind River Formation and Indian Meadows Formations
Geologic age	Phanerozoic \| Cenozoic \| Tertiary \| Eocene
Original map label	Twim
Primary rock type	fine-grained mixed clastic
Secondary rock type	medium-grained mixed clastic
Other rock types	carbonate; conglomerate
Lithologic constituents	Minor Sedimentary > Carbonate > Limestone Sedimentary > Clastic > Sandstone Sedimentary > Clastic > Siltstone Sedimentary > Clastic > Mudstone > Claystone Sedimentary > Clastic > Conglomerate Incidental Igneous > Volcanic (Pyroclastic, tuff) Sedimentary > Coal
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