Dunkard Group

Non-marine cyclic sequences of sandstone, siltstone, red and gray shale, limestone, and coal. Contains the Greene, Washington and Waynesburg Formations. Extends from the top of the exposed bed rock section to the top of the Waynesburg coal. Includes the Washington coals and limestones. Palynological evidence favors a Pennsylvanian age, at least for the lower portion.
State West Virginia
Name Dunkard Group
Geologic age Permian/Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shalered and gray shale
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
Minor
Sedimentary > Carbonate > Limestone
Sedimentary > Coal
Comments Thickness: Western 450+ ft.
References

Cardwell, D.H., Erwin, R.B., and Woodward, H.P., 1968 (slightly revised 1986), Geologic Map of West Virginia: West Virginia Geological and Economic Survey, Map 1, East Sheet, scale 1:250,000.

NGMDB product
Counties Barbour - Braxton - Brooke - Cabell - Calhoun - Doddridge - Gilmer - Harrison - Jackson - Kanawha - Lewis - Marion - Marshall - Mason - Monongalia - Ohio - Pleasants - Putnam - Ritchie - Roane - Taylor - Tyler - Upshur - Wetzel - Wirt - Wood