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Black Mingo/Clayton Formations

Black Mingo/Clayton Formations: Poorly to well sorted sand and clay deposited in delta-dominated fluvial- and shallow marine environments. Older parts of unit are characterized by an abundance of feldspar and local sillimanite. Unit is generally delta plain and lagoon deposits in South Carolina becoming open marine calcareous sand and clay in western Georgia. In central Georgia, unit contains an abundance of commercial kaolin deposits formed in lower delta plain environments.
StateSouth Carolina
NameBlack Mingo/Clayton Formations
Geologic ageTertiary
Original map labelTbmc
Primary rock typesand
Secondary rock typeclay or mud
Other rock typeskaolin
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand
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,
Geographic coverageAiken - Calhoun - Lexington

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