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Oahe Formation- Pond Sediment

Dark, obscurely bedded clay and silt; typically a few meters thick; in modern ephemeral ponds.
State North Dakota
Name Oahe Formation- Pond Sediment
Geologic age Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene
Comments Oahe Formation-Clay, sand, silt and gravel with dispersed organic materal
Primary rock type clay or mud
Secondary rock type silt
Other rock types
Lithologic constituents
Major
Unconsolidated > Fine-detrital > Clay (Lacustrine)
Unconsolidated > Fine-detrital > Silt (Lacustrine)
Map references
Clayton, Lee, 1980, Geologic Map of North Dakota: U. S. Geological Survey, Scale 1:500K.
Unit references
Clayton, Lee, 1980, Geologic Map of North Dakota: U. S. Geological Survey, Scale 1:500K.
Counties Barnes - Benson - Bottineau - Burke - Burleigh - Cavalier - Griggs - McHenry - McIntosh - McKenzie - Nelson - Pierce - Rolette - Steele - Stutsman - Towner - Williams