Green River Fm--Tipton Tongue

Claystone and oil shale; in Sand Wash basin. In extreme northwest includes rocks of Wilkins Peak Member
State Colorado
Name Green River Fm--Tipton Tongue
Geologic age Tertiary
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale > Oil-shale
Sedimentary > Clastic > Mudstone > Claystone
References

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

NGMDB product
Counties Moffat