|Name||Maccrady Formation and Pocono Group, undivided|
|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|
|Primary rock type||shale|
|Secondary rock type||sandstone|
|Other rock types||mudstone; limestone; chemical|
Sedimentary > Clastic > Mudstone > ShaleMaccrady Formation: red shale and mudrock; Pocono Group: some shale
Sedimentary > Clastic > SandstoneMaccrady Formation: red and green sandstone; Pocono Group: predominantly hard gray massive sandstones
Sedimentary > Clastic > MudstoneMaccrady Formation: red shale and mudrock
Sedimentary > Carbonate > Limestone
Sedimentary > Chemical > Evaporite > SaltMaccrady Formation: contains rock salt and gypsum is southwestern Virginia.
Sedimentary > Chemical > Evaporite > GypsumMaccrady Formation: contains rock salt and gypsum is southwestern Virginia.
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
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.
|Counties||Mercer - Monroe|