Tuscaloosa Formation

Poorly sorted, light-gray chert gravel in a matrix of silt and sand; locally interbedded with sand and clay lenses. Thickness 0 to 150 feet.
State Tennessee
Name Tuscaloosa Formation
Geologic age Cretaceous
Lithologic constituents
Unconsolidated > Coarse-detrital > Gravelchert gravel
Unconsolidated > Fine-detrital > Silt
Unconsolidated > Coarse-detrital > Sand
Unconsolidated > Fine-detrital > Clay
Comments West-Central sheet

Greene, D.C., and Wolfe, W.J., 2000, Superfund GIS - 1:250,000 Geology of Tennessee, USGS, (geo250k).

Hardeman, W.D., Miller, R.A., and Swingle, G.D., 1966, Geologic Map of Tennessee: Division of Geology, Tennessee Department of Environment and Conservation, 4 sheets, scale 1:250,000

NGMDB product
Counties Dickson - Hardin - Humphreys - Lawrence - Lewis - Perry - Stewart - Wayne