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).
State South Dakota
Name Eolian Deposits
Geologic age Quaternary
Lithologic constituents
Major
Unconsolidated > Fine-detrital > Silt (Eolian-loess)
Unconsolidated > Coarse-detrital > Sand (Eolian)
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, GM 10, scale 1:500,000.

NGMDB product
Counties Bennett - Butte - Corson - Custer - Dewey - Fall River - Gregory - Haakon - Harding - Jackson - Jones - Lyman - Mellette - Pennington - Perkins - Shannon - Stanley - Sully - Todd - Tripp - Ziebach