Conemaugh Group

Cyclic sequences of red and gray shale, siltstone, and sandstone, with thin limestones and coals. Mostly non-marine. May be divided into Casselman and Glenshaw Formations. Extends from the base of the Pittsburgh coal to the top of the Upper Freeport coal. Includes the Elk Lick, Bakerstown, and Mahoning coals, and the Ames and Brush Creek Limestones.
State West Virginia
Name Conemaugh Group
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Siltstone
Minor
Sedimentary > Coal
Sedimentary > Carbonate > Limestone
Comments Thickness: Northeastern 750-850 ft, Western 530 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 - Boone - Braxton - Brooke - Cabell - Calhoun - Clay - Fayette - Gilmer - Grant - Hancock - Harrison - Kanawha - Lewis - Lincoln - Logan - Marion - Marshall - Mason - Mineral - Mingo - Monongalia - Nicholas - Ohio - Pendleton - Pleasants - Preston - Putnam - Raleigh - Randolph - Ritchie - Roane - Taylor - Tucker - Upshur - Wayne - Webster - Wirt - Wood