Kiowa Formation (OKKk;0)

WOODWARD- Gray and yellow shale and limestone, with many "Texigryphaea" shells locally. At base is 5 to 10 feet of greenish-gray sandstone in places. Thickness ranges up to 140 feet with top eroded. CLINTON- Outliers of the "Kiowa Formation," Kk, dark-gray shale with some thin beds of fossiliferous tan limestone, range in thickness from a few feet to about 20 feet. Associated in some places is a 5- to 10-foot, gray to brown, coarse-grained sandstone and conglomerate assigned to the overlying "Dakota Group," Kd, (lower sandstone part).

State	Oklahoma
Name	Kiowa Formation
Geologic age	Phanerozoic \| Mesozoic \| Cretaceous-Early
Original map label	Kk
Primary rock type	shale
Secondary rock type	limestone
Other rock types	sandstone; conglomerate
Lithologic constituents	Major Sedimentary > Carbonate > Limestone (Bed) Sedimentary > Clastic > Mudstone > Shale (Bed) Minor Sedimentary > Clastic > Sandstone (Bed)
Map references	Heran, W. D., Green, G. and Stoeser, D. B., 2003, A Digital Geologic Map Database of Oklahoma: U. S. G. S. Open File Report 03-247
Unit references	Heran, W. D., Green, G. and Stoeser, D. B., 2003, A Digital Geologic Map Database of Oklahoma: U. S. G. S. Open File Report 03-247 Morton, R.B., 1980, Reconnaissance of the water resources of the Woodward quadrangle, northwestern Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 8, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by R.B. Morton, 1973, and R.O. Fay, 1977.) Cederstrand, J.R., 1996l, Digital geologic map of Woodward quadrangles, northwestern Oklahoma: U.S. Geological Survey Open-File Report 96-381,(2 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology [http://ok.water.usgs.gov/gis/geology/woodward.html] [http://ok.water.usgs.gov/gis/geology] Carr, J.E. and Bergman, D.L., 1976, Reconnaissance of the water resources of the Clinton quadrangle, west-central Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 5, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by J.E. Carr, 1972, and R.O. Fay, 1975.) Cederstrand, J.R., 1996d, Digital geologic map of Clinton quadrangles, west-central Oklahoma: U.S. Geological Survey Open-File Report 96-373, (2 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology [http://ok.water.usgs.gov/gis/geology/clinton.html] [http://ok.water.usgs.gov/gis/geology]
Geographic coverage	Custer - Dewey - Ellis - Harper - Roger Mills - Washita - Woods