|Geologic age||Middle Pennsylvanian- Des Moinesian|
Sedimentary > Clastic > Sandstone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Coal (Bed)
|Comments||Sandstone with minor shale beds and minor coal. Approximatly 300 ft.maximum thickness.|
Ferguson, J.G., 1920. Outlines of the geology, soils, and minerals of the State of Arkansas: Arkansas State Bureau of Mines, Manufactures and Agriculture,192 pp.
Hendricks, T.A. and Parks, B.C., 1937, Geology and mineral resources of the western part of the Arkansas coal field: U. S. Geological Survey Bulletin, Report: B 0847-E, pp.189-224
Brewster, E.B. and Williams, N.F., 1951, Guide book to the Paleozoic rocks of northwest Arkansas [18th annual field trip, November 2-3, 1951]. iv 19 pp.
|Counties||Conway - Crawford - Faulkner - Franklin - Johnson - Logan - Perry - Pope - Scott - Sebastian - Yell|