Sequatchie Formation

Light-olive-gray and dusky-red calcareous shale interbedded with light to dark-gray fine to coarse-grained partly bioclastic, argillaceous, locally glauconitic limestone.
State Alabama
Name Sequatchie Formation
Geologic age Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)light-olive-gray and dusky-red calcareous shale
Sedimentary > Carbonate > Limestone (Bed)light to dark-gray fine to coarse-grained partly bioclastic, argillaceous, locally glauconitic 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 Cherokee - Etowah - Saint Clair