Shawnee Group

Includes: Topeka Limestone, Calhoun Shale, Deer Creek Limestone (base DC), Tecumseh Shale, Lecompton Limestone (base LC), Kanwaka Shale, Oread Limestone with Plattsmouth Limestone Member (base PL).
State Kansas
Name Shawnee Group
Geologic age Late Pennsylvanian- Virgilian
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Comments cyclic sequence of alternating gray to bluish gray limestone and shale units with some sandstone. Certain thick limestone units form persistent escarpments. Total approximate thickness 325 ft. in outcrop.

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 Anderson - Atchison - Chautauqua - Coffey - Doniphan - Douglas - Elk - Franklin - Greenwood - Jefferson - Leavenworth - Lyon - Osage - Shawnee - Wilson - Woodson