Lenapah Formation (OKPAlp;0)

State	Oklahoma
Name	Lenapah Formation
Geologic age	Phanerozoic \| Paleozoic \| Carboniferous Pennsylvanian-Middle
Original map label	IPlp
Comments	Comments: Named for the town of Lenapah, Nowata Co, OK, Chautauqua platform. Occurs near the KS State line entirely east of the Verdigris River. Is the cap rock of most of the hills in northeast part of the Nowata quadrangle. Consists of a single bed of fossiliferous limestone which, when unaltered, is a dense, blue, and partly crystalline usually containing much fossils, especially brachiopods. Has little or no chert. Thickness of the formation is approximately 20 ft in the quarry 3 mi north of Lenapah; at Nowata, is 6-8 ft thick; less than 30 inches thick south of Nowata. (Ohern, 1910)
Primary rock type	limestone
Secondary rock type	shale
Other rock types
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Shale (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 Marcher, M.V., and Bingham R.H., 1971, Reconnaissance of the water resources of the Tulsa quadrangle, northeastern Oklahoma: Oklahoma Geological Survey, Hydrologic Atlas 2, scale 1:250,000, 4 sheets. (Geology on sheet 1 compiled by M.V. Marcher, in 1969.) Cederstrand, J.R., 1996k, Digital geologic map of Tulsa quadrangles, northeastern Oklahoma: U.S. Geological Survey Open-File Report 96-380, (2 diskettes), URL address is: http://ok.water.usgs.gov/gis/geology [http://ok.water.usgs.gov/gis/geology/tulsa.html] [http://ok.water.usgs.gov/gis/geology] Ohern, D. W., 1910, The stratigraphy of the older Pennsylvanian rocks of northeastern Oklahoma: Okla St Univ, Research Bull., 4; Abst, Geol. Soc. Am., Bull. 22: pp. 720-721
Geographic coverage	Nowata