|Geologic age||Early Permian|
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
|Comments||Named from town of Hennessey, northern Kingfisher Co, OK, (Aurin and others, 1926). in the Anadarko basin. The shales of the Hennessey are rarely fissile or laminated; instead they are more commonly blocky and break with a conchoidal fracture with the appearance of "joint clay." Characterized by numerous bands or streaks which are white or light green in color varying in thickness from a few inches to 4+ ft. (S. Oklahoma folded belt province).|
Heran, W.D., Green, G. and Stoeser, D.B., 2003, A Digital Geologic Map Database of Oklahoma: USGS Open File Report 03-247, scale 1:250,000.
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
Havens, J.S., 1977, Reconnaissance of the water resources of the Lawton quadrangle, southwestern Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 6, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by R.O. Fay, 1967-68 and J.S. Havens, 1973.)
Cederstrand, J.R., 1996g, Digital geologic map of Lawton quadrangles, southwestern Oklahoma: U.S. Geological Survey Open-File Report 96-376, (3 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology
Aurin, F.L., Officer, H.G. and Gould, C.N., 1926, The subdivision of the Enid Formation: Bulletin of the American Association of Petroleum Geologists, vol.10, no.8, pp.786-799.
|Counties||Caddo - Comanche - Cotton - Greer - Jackson - Kiowa - Stephens - Tillman|