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Elm Fork Member of Blaine Formation

LAWTON- "Elm Fork Member," Pbe, of the Blaine Formation contains 3 dolomite-gypsum sequences with a total thickness of 80 to 110 feet (24 to 34 m).
State Oklahoma
Name Elm Fork Member of Blaine Formation
Geologic age Phanerozoic | Paleozoic | Permian
Primary rock type dolostone (dolomite)
Secondary rock type evaporite
Other rock types
Lithologic constituents
Major
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
Sedimentary > Carbonate > Dolostone (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
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
Counties Greer - Harmon - Jackson