Unconsolidated > Coarse-detrital > SandLight-greenish-gray to yellowish-gray cross-bedded, well-sorted, micaceous, fine to medium quartz sand that is fossiliferous and glauconitic in part; light-gray glauconitic fossiliferous sand
Unconsolidated > Fine-detrital > Clay (Bed)contains beds of greenish-gray micaceous, silty clay and medium-dark-gray carbonaceous clay.
Sedimentary > Carbonate > Limestone > Coquina (Calcareous)massive accumulations of fossil oyster shells occur locally in the upper part of the formation in western AL (Tombigbee Sand Member). In eastern AL thin to thick-bedded accumulations of the fossil oyster Ostrea cretacea Morton occur throughout much of the formation.
Sedimentary > Clastic > Sandstonethin beds of sandstone
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.
|Counties||Autauga - Bibb - Chilton - Colbert - Dallas - Elmore - Franklin - Greene - Hale - Lamar - Lauderdale - Lee - Lowndes - Macon - Marion - Montgomery - Perry - Pickens - Russell - Tuscaloosa|