Pierre Shale

Thin bedded gray to brownish gray shale; contains concretions, selenite crystals, thin beds of bentonite and locally chalky beds.
State Kansas
Name Pierre Shale
Geologic age Late Cretaceous
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Comments approximate thickness 1000-1600 ft. in outcrop.
References

Ross, Jorgina A., 1991, Geologic Map of Kansas: Kansas Geological Survey, Univ. of Kansas, Map M-23, scale 1:500,000.

Zeller, D.E., ed., 1968, The Stratigraphic Succession in Kansas, State Geological Survey of Kansas Bull. 189.

NGMDB product
Counties Cheyenne - Gove - Graham - Logan - Wallace