|Name||Delaware Creek Shale|
Sedimentary > Clastic > Mudstone > Shale (Bed)
|Comments||Named as middle member (of 3) of Caney shale; named from Delaware Creek which flows eastward in the Bromide-Wapanucka area. Type are designated in the northeast part of T2S, R7E, about 3 1/2 mi southwest of Bromide; type locality measured in NE1/4 sec 14, T2S, R7E, Johnston Co, OK, S. Oklahoma folded beld province. Occurs in northern Arbuckle Mountains of south-central OK. Consists of gray to dark-gray, non-calcareous to slightly calcareous, finely laminated to flaky, partly bituminous shale, locally rotten (shattered) with a considerable amount of finely crystalline gypsum along bedding planes. Gray to light-gray to light-buff limestone concretions common; concretions are generally fairly large and elliptical, more or less compressed across bedding plane, and commonly very large, up to 12 ft in diameter; they developed in fused clusters along bedding planes; some have crystalline barite. Calcareous concretions mostly distinctly septarian in structure. Thickness at type is about 270 ft; thickness southeast of Ahlosa is 150 +- 50 ft; thickness in area southwest of Bromide ranges from about 50 ft in west part of sec 13, T2S, R7E, to about 270 ft. (Elias, 1956).|
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.
Hart, D.L., 1974, Reconnaissance of the water resources of the Ardmore and Sherman quadrangles, southern Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 3, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by D.L. Hart, and R.O. Fay, in 1970.)
Cederstrand, J.R., 1996a, Digital geologic map of Ardmore-Sherman quadrangles, south-central Oklahoma: U.S. Geological Survey Open-File Report 96-370, (3 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology
Marcher, M.V. and Bergman, D.L., 1983, Reconnaissance of the water resources of the McAlester and Texarkana quadrangles, southeastern Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 9, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by M.V. Marcher and D.L. Bergman, in 1971 and revised by R.O. Fay, in 1978.)
Cederstrand, J.R., 1996h, Digital geologic map of McAlester-Texarkana quadrangles, southeastern Oklahoma: U.S. Geological Survey Open-File Report 96-377, (3 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology
Elias, M.K., 1956, Upper Mississippian and Lower Pennsylvanian formations of south-central Oklahoma: [Monograph] V. 1 of Ardmore Geol. Soc., Petroleum geology of southern Oklahoma--a symposium, pp.56-134.
|Counties||Atoka - Carter - Coal - Johnston - Latimer - Le Flore - Love - Marshall - Murray - Pittsburg - Pontotoc|