Skip to main content

Black Creek/Cusseta/Blufftown Formations

Black Creek/Cusseta/Blufftown Formations: Moderately to poorly sorted sand and clay deposited in delta-dominated shallow marine environments. Unit is characterized by sands containing locally abundant (F-VC grained) tourmaline and (F-VC grained) muscovite with some monazite and garnet. Clay layers are also common and some lower delta plain deposits form commercial kaolin bodies. Generally very restricted marine in eastern Georgia becoming more open marine to the east and west.
State South Carolina
Name Black Creek/Cusseta/Blufftown Formations
Geologic age Cretaceous
Primary rock type sand
Secondary rock type clay or mud
Other rock types
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand
Minor
Unconsolidated > Fine-detrital > Clay
Map references
Newell, Wayne L., Prowell, David (retired), Krantz, David, Powars, David, Mixon, Robert (retired), Stone, Byron, and Willard, Debra, in review, Surficial Geology and Geomorphology of the Atlantic Coastal Plain: U.S.G.S. Open File Report,
Unit references
Newell, Wayne L., Prowell, David (retired), Krantz, David, Powars, David, Mixon, Robert (retired), Stone, Byron, and Willard, Debra, in review, Surficial Geology and Geomorphology of the Atlantic Coastal Plain: U.S.G.S. Open File Report,
Counties Aiken - Calhoun - Saluda