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Landslide Deposits

Landslide, slump, and collapsed material composed of chaotically mixed boulders and finer grained rock debris. Thickness up to 180 ft (55m).
State South Dakota
Name Landslide Deposits
Geologic age Phanerozoic | Cenozoic | Quaternary
Primary rock type sand
Secondary rock type gravel
Other rock types
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Boulders (Landslide)
Unconsolidated > Coarse-detrital > Sand (Landslide)
Unconsolidated > Coarse-detrital > Gravel (Landslide)
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
Counties Corson - Custer - Dewey - Fall River - Harding - Jackson - Meade - Pennington - Shannon - Stanley