Greensport Formation

Variegated dusky-red and dark-yellowish-orange shale, calcareous mudstone, limestone, siltstone, and minor sandstone.
State Alabama
Name Greensport Formation
Geologic age Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone (Calcareous)
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Mudstone > Shale
Minor
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Siltstone
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 Calhoun - Etowah - Saint Clair