Fort Payne Formation and Chattanooga Shale

Fort Payne Formation - Bedded chert; calcareous and dolomitic silicastone; minor limestone and shale; scattered lenses of crinoidal limestone. Thin green shale (Maury) at base. Average thickness about 250 feet (475 in Wells Creek area); and Chattanooga Shale - Black carbonaceous shale, fissile. Thickness 0 to 70 feet; average about 20 feet. (Mapped as MDc on East-Central and East sheets)
State Tennessee
Name Fort Payne Formation and Chattanooga Shale
Geologic age Mississippian
Lithologic constituents
Major
Sedimentary > Chemical > Chert
Minor
Sedimentary > Clastic > Siltstone (Calcareous)
Incidental
Sedimentary > Clastic > Mudstone > Shale > Black-shale
Sedimentary > Carbonate > Limestonecrinoidal limestone
Sedimentary > Clastic > Mudstone > Shale
Comments West-Central sheet
References

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 Bedford - Cannon - Cheatham - Clay - Coffee - Davidson - DeKalb - Dickson - Franklin - Giles - Hardin - Hickman - Houston - Humphreys - Jackson - Lawrence - Lewis - Lincoln - Macon - Marshall - Maury - Montgomery - Moore - Perry - Robertson - Rutherford - Smith - Stewart - Sumner - Trousdale - Wayne - Williamson - Wilson