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Eolian Deposits

(loess and sand dune) Silt to medium-grained sand. Deposited as sand sheets and barchan, linear, and dome-like dunes and as veneer on uplands. Thickness up to 300 ft (91m).
StateSouth Dakota
NameEolian Deposits
Geologic agePhanerozoic | Cenozoic | Quaternary
Original map labelQe
Primary rock typesilt
Secondary rock typesand
Other rock types
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand (Eolian)
Unconsolidated > Fine-detrital > Silt (Eolian, Loess)
Map references
Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Unit references
Martin, J. E., Sawyer, J. F., Fahrenbach, M. D., Tomhave, D. W., and Schulz, L. D., 2004, Geologic Map of South Dakota: South Dakota Geological Survey
Geographic coverageBeadle - Bennett - Bon Homme - Brown - Buffalo - Butte - Campbell - Charles Mix - Clay - Corson - Custer - Dewey - Fall River - Gregory - Haakon - Harding - Hughes - Hutchinson - Jackson - Jones - Lyman - Marshall - Mellette - Minnehaha - Moody - Pennington - Perkins - Potter - Sanborn - Shannon - Spink - Stanley - Sully - Todd - Tripp - Walworth - Yankton - Ziebach

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