Fort Union Formation - Lebo and Tullock Members

Lebo Member (Tfl) - Dark-gray clay shale and concretionary sandstone. Tullock Member (Tft) - Soft gray sandstone, gray and brown carbonaceous shale, and thin coal beds.
State Wyoming
Name Fort Union Formation - Lebo and Tullock Members
Geologic age Paleocene
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Coal
References
NGMDB product
Counties Campbell