West Spring Creek Formation (OKOws;0)

ARDMORE-SHERMAN- Limestone, gray to tan, fine-grained, gradational eastward into tan fine- to coarse-grained dolomite; some tan to gray sandstone and shale; thickness, 1,875 to 3,000 feet, decreasing eastward. (Arbuckle Group) Individual Fm description not found Occurs in the ARBUCKLE MTNS

State	Oklahoma
Name	West Spring Creek Formation
Geologic age	Phanerozoic \| Paleozoic \| Ordovician-Early
Original map label	Ows
Primary rock type	limestone
Secondary rock type	dolostone (dolomite)
Other rock types	sandstone; shale
Lithologic constituents	Major Sedimentary > Carbonate > Dolostone (Bed) Sedimentary > Carbonate > Limestone (Bed) Minor Sedimentary > Clastic > Mudstone > Shale (Bed) 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 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 [http://ok.water.usgs.gov/gis/geology/ardmore.html] [http://ok.water.usgs.gov/gis/geology]
Geographic coverage	Johnston - Murray - Pontotoc