State | Colorado |
---|---|
Name | Wasatch Fm (including Fort Union equivalent at base) and Ohio Creek Fm |
Geologic age | Tertiary |
Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Claystone
Minor
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Mudstone > Shale
|
References | Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000. |
NGMDB product | |
Counties | Delta - Garfield - Gunnison - Mesa - Pitkin - Rio Blanco |