Dunkard Group (WVPd;0)

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
Original map label	Pd
Comments	Thickness: Western 450+ ft.
Primary rock type	sandstone
Secondary rock type	siltstone
Other rock types	shale; limestone; coal
Lithologic constituents	Minor Sedimentary > Carbonate > Limestone Sedimentary > Coal
Map references	Digital version of 1968 printed map available from http://wvgis.wvu.edu/data/data.php with the specific data available from http://wvgis.wvu.edu/data/dataset.php?action=search&ID=43 [http://wvgis.wvu.edu/data/data.php] [http://wvgis.wvu.edu/data/dataset.php?action=search&ID=43]
Unit 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.
Geographic coverage	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