Lower Miocene Rocks (WYTml;0)

LOWER MIOCENE ROCKS--Northwest Wyoming (Bighorn Mountains): Gray soft poorly bedded to massive sandstone; Central Wyoming: Tuffaceous sandstone, siltstone, and white marl.

State	Wyoming
Name	Lower Miocene Rocks
Geologic age	Phanerozoic \| Cenozoic \| Tertiary \| Miocene-Early
Original map label	Tml
Primary rock type	sandstone
Secondary rock type	siltstone
Other rock types
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (Bed) Minor Sedimentary > Carbonate > Marlstone Sedimentary > Clastic > Siltstone (Tuffaceous)
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	Albany - Carbon - Converse - Johnson - Natrona - Washakie