|Name||Tuscaloosa Group; Gordo Formation|
Unconsolidated > Fine-detrital > Clay (Bed)lenticular beds of locally carbonaceous partly mottled moderate-red and pale-red-purple clay
Unconsolidated > Coarse-detrital > Sand (Bed)Massive beds of cross-bedded sand, gravelly sand.
Unconsolidated > Coarse-detrital > Gravel (Bed)lower part is predominantly a gravelly sand consisting cheifly of chert and quartz pebbles.
Sedimentary > Chemical > Chert (Bed)lower part is predominantly a gravelly sand consisting cheifly of chert and quartz pebbles.
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 - Fayette - Franklin - Greene - Hale - Lamar - Lauderdale - Marion - Perry - Pickens - Tuscaloosa|