Green River Fm

Marlstone, sandstone, and oil shale
State Colorado
Name Green River Fm
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Clastic > Mudstone > Shale > Oil-shale
References

Tweto, Ogden, 1979, Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale 1:500,000.

NGMDB product
Counties Delta - Mesa - Moffat