Morrison Fm and Junction Creek Sandstone

In Gunnison River area east of wedgeout of all units of Wanakah Fm (Jmw) except the Junction Creek Member
State Colorado
Name Morrison Fm and Junction Creek Sandstone
Geologic age Jurassic
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Claystone
Sedimentary > Clastic > Mudstone
References

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

NGMDB product
Counties Gunnison - Saguache