Kiowa Shale and Cheyenne Sandstone (KSKkc;0)

Kiowa Shale or FM- light -gray to black illitic shale with thin coquinoidal limestone beds at the base; sandstone lenses common. Cheyenne Sandstone- massive to crossbedded, light-gray to buff fine-grained sandstone with lenses of gray sandy shale and conglomerate.

State	Kansas
Name	Kiowa Shale and Cheyenne Sandstone
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Early
Original map label	Kkc
Comments	Kiowa Shale or FM- locally, in north-central Kansas, sandstone may approximate 80% of total, approximate thickness 60-150 ft. in outcrop, Cheyenne Sandstone- approximate thickness 0- 100 ft. in outcrop, maximum subsurface thickness is 300 ft.
Primary rock type	sandstone
Secondary rock type	shale
Other rock types	limestone; conglomerate
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed) Sedimentary > Clastic > Sandstone (Bed) Minor Sedimentary > Clastic > Conglomerate (Lense) Sedimentary > Carbonate > Limestone (Coquina)
Map references	Ross, J. A., 1991, Geologic Map of Kansas: Kansas Geological Survey, Univ. of Kansas Map M-23 Scale 1:500K.
Unit references	Ross, J. A., 1991, Geologic Map of Kansas: Kansas Geological Survey, Univ. of Kansas Map M-23 Scale 1:500K. Zeller, D.E., ed., 1968, The Stratigraphic Succession in Kansas, State Geological Survey of Kansas Bull. 189.
Geographic coverage	Barber - Barton - Clark - Clay - Cloud - Comanche - Dickinson - Ellsworth - Kiowa - Lincoln - McPherson - Marion - Ottawa - Rice - Saline - Washington