Upper part of Arbuckle Group (OKOua;0)

State	Oklahoma
Name	Upper part of Arbuckle Group
Geologic age	Phanerozoic \| Paleozoic \| Ordovician-Early
Original map label	Oua
Comments	Comments: Arbuckle Group: Named for Arbuckle Mountains, Murray Co, OK, South Oklahoma folded belt province. Consists of limestones with dolomites. At base, 50 ft thin-bedded siliceous limestones gradually change to 300-400 ft massive, dull-bluish and cream dolomites; above these 200 ft of thin-bedded, granular limestone and compact blue limestones which grade into 3500-4000 ft massive magnesium limestone with chert in lower half. At top are limestones interstratified with sandy beds and strata of red, yellow and green clays (Taff, 1903).
Primary rock type	limestone
Secondary rock type	dolostone (dolomite)
Other rock types
Lithologic constituents	Major Sedimentary > Carbonate > Dolostone (Bed) Sedimentary > Carbonate > Limestone (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 [http://ok.water.usgs.gov/gis/geology/lawton.html] [http://ok.water.usgs.gov/gis/geology] Taff, J. A., 1903, Description of the Tishomingo quadrangle [Indian Territory]: U.S. Geological Survey Geologic Atlas of the United States, Folio 98. [http://pubs.er.usgs.gov/publication/gf98]
Geographic coverage	Comanche