State | Oklahoma |
---|---|
Name | Wichita Granite Group |
Geologic age | Middle Cambrian |
Lithologic constituents | Major
Igneous > Plutonic > Granitic > Granite (Pluton)
|
Comments | Probably named for Wichita Mountains of southern OK. Report area is southern Oklahoma, where it is present in (east to west, mostly subsurface): western Jefferson, Cotton, Comanche, Kiowa, and Greer Cos (South Oklahoma folded belt province); Beckham and Washita Cos (Anadarko basin); and Jackson and Harmon Cos (Palo Duro basin). Consists chiefly of perthite leucogranites of various textures representing multiple intrusions, in part having the form of extensive sills 600 to 1,500 ft thick intruding the lower part of the Carlton Rhyolite Group [revised--Carlton is the extrusive equivalent of Wichita], and in part occurring as irregular plutons and sills cutting all other rocks of the "Wichita Province." (Ham, 1963). |
References | 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.https://pubs.er.usgs.gov/publication/ofr03247 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/geologyhttps://pubs.er.usgs.gov/publication/ofr96373 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/geologyhttps://pubs.er.usgs.gov/publication/ofr96376 Ham, W.E., 1963, Basement rocks and structural evolution of southern Oklahoma; a summary: [Monograph] Basement rocks and structural evolution of southern Oklahoma, Ardmore Geol. Soc., Field Conf. Guidebook. |
NGMDB product | |
Counties | Comanche - Greer - Jackson - Kiowa - Tillman |