Parkwood Formation

Interbedded medium to dark-gray shale and light to medium-gray sandstone; locally contains dusky-red and grayish-green mudstone, argillaceous limestone, and clayey coal.
State Alabama
Name Parkwood Formation
Geologic age Pennsylvanian-Mississippian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Minor
Sedimentary > Clastic > Mudstone (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Coal (Bed)clayey coal
Unconsolidated > Fine-detrital > Clay (Bed)clayey coal
Sedimentary > Carbonate > Limestone (Bed)argillaceous limestone
References

Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.

NGMDB product
Counties Cullman - Franklin - Lawrence - Marion - Morgan - Winston