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Missouri Mountain Shale and Blaylock Sandstone

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ARDMORE-SHERMAN- "Missouri Mountain Shale," shale, black to gray-green to red; thickness, 100 feet; underlain by sandstone, several feet thick, correlated as "Blaylock." Occurs in the OUACHITA MNTS.
State Oklahoma
Name Missouri Mountain Shale and Blaylock Sandstone
Geologic age Early Silurian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Incidental
Sedimentary > Clastic > Sandstone (Bed)
References

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.

https://pubs.er.usgs.gov/publication/ofr03247

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

https://pubs.er.usgs.gov/publication/ofr96370
NGMDB product
Counties Atoka