State | Colorado |
---|---|
Name | Casper Fm and Lower part of Fountain Fm |
Geologic age | Permian-Pennsylvanian |
Lithologic constituents | Major
Sedimentary > Clastic > Sandstone > Arkose
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Conglomerate
|
References | Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000. |
NGMDB product | |
Counties | Larimer |