Maccrady Formation and Pocono Group, undivided

Maccrady Formation: red shale and mudrock, red and green sandstone, and minor limestone. Present only from Pendleton County southward. Contains rock salt and gypsum in southwestern Virginia. Pocono Group: predominantly hard gray massive sandstones, with some shale. In the Eastern Panhandle, has been divided into the Hedges, Purslane, and Rockwell Formations.
State West Virginia
Name Maccrady Formation and Pocono Group, undivided
Geologic age Mississippian
Lithologic constituents
Major
Sedimentary > Clastic > SandstoneMaccrady Formation: red and green sandstone; Pocono Group: predominantly hard gray massive sandstones
Sedimentary > Clastic > Mudstone > ShaleMaccrady Formation: red shale and mudrock; Pocono Group: some shale
Minor
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > MudstoneMaccrady Formation: red shale and mudrock
Incidental
Sedimentary > Chemical > Evaporite > GypsumMaccrady Formation: contains rock salt and gypsum is southwestern Virginia.
Sedimentary > Chemical > Evaporite > SaltMaccrady Formation: contains rock salt and gypsum is southwestern Virginia.
Comments Printed map has no indiviual description for this unit and no name, but has individual symbol and color. Only uses brackets to combine Mmcc and Mp. Mmp is used in digital map, so combined Mmcc and Mp together and called this the "Maccrady Formation and Pocono Group, undivided". Combined thickness: Northeastern 570-1030 ft, Western 525 ft, Southeastern 350-1250 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 Mercer - Monroe