Basin-fill deposit

Interbedded poorly consolidated to unconsolidated, well-bedded to massive silt, sand, and well-rounded cobbles. Ennis Lake area, southwestern Montana.
State Montana
Name Basin-fill deposit
Geologic age Quaternary and Tertiary
Lithologic constituents
Major
Unconsolidated > Fine-detrital > Silt
Unconsolidated > Coarse-detrital > Gravel
Unconsolidated > Coarse-detrital > Sand
References

Vuke, S.M., Porter, K.W., Lonn, J.D., and Lopez, D.A., 2007, Geologic Map of Montana - Compact Disc: Montana Bureau of Mines and Geology: Geologic Map 62-C, 73 p., 2 sheets, scale 1:500,000. This map was digitized in 2012 as a result of a contract between the U.S. Geological Survey and the Montana Bureau of Mines and Geology.

NGMDB product
Counties Madison