Outwash, Terrace

Heterogeneous clay to gravel of glaciofluvial orgin. Thickness up to 60 ft (18m)
State South Dakota
Name Outwash, Terrace
Geologic age Pleistocene-Upper Wisconsin
Lithologic constituents
Unconsolidated > Coarse-detrital > Gravel (Glacial-outwash)
Unconsolidated > Coarse-detrital > Sand (Glacial-outwash)
Unconsolidated > Fine-detrital > Clay (Glacial-outwash)

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 Corson - Dewey - Gregory - Hughes - Lyman - Stanley