Ruddell Shale

Ruddell Shale
State Arkansas
Name Ruddell Shale
Geologic age Late Mississippian- Chesterian
Lithologic constituents
Sedimentary > Clastic > Mudstone > Shale (Bed)
Comments Dark gray fissile clay shale with minor calcareous beds containing iron concretions. Approximatly 270 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.

NGMDB product
Counties Baxter - Independence - Searcy - Stone