Socastee Formation (SCQso;1)

State	South Carolina
Name	Socastee Formation
Geologic age	Pleistocene
Original map label	Qso
Comments	Secondary unit description from USGS Lexicon (ref.SC003): Socastee Formation here named in Horry Co., SC, and recognized in NC. Described as variegated quartzose sands, argillaceous sands, and clays, 5 m thick at the type section near Socastee Swamp. Unconformably overlies Canepatch Formation; unconformably underlies Waiter Island Formation and Ocean Forest Peat. Age is Pleistocene.
Primary rock type	sand
Secondary rock type	clay or mud
Other rock types
Lithologic constituents	Major Unconsolidated > Fine-detrital > ClayDescribed as variegated quartzose sands, argillaceous sands, and clays, 5 m thick at the type section near Socastee Swamp. Unconsolidated > Coarse-detrital > SandDescribed as variegated quartzose sands, argillaceous sands, and clays, 5 m thick at the type section near Socastee Swamp.
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, USGS Geologic Names Lexicon (GEOLEX) [http://ngmdb.usgs.gov/Geolex/]
Geographic coverage	Aiken - Allendale - Barnwell - Beaufort - Berkeley - Charleston - Chesterfield - Clarendon - Colleton - Darlington - Dillon - Dorchester - Georgetown - Hampton - Horry - Jasper - Marion - Marlboro - Williamsburg