Fort Payne Formation and Chattanooga Shale

Fort Payne Formation - Calcareous and dolomitic silicastone; contains bedded chert, cherty limestone, and shale; scattered crinoidal limestone lenses. Thin green shale (Maury) at base. Thickness 100 to 275 feet.; and Chattanooga Shale - Black carbonaceous shale, fissile. Thickness 20 to 30 feet in most areas. (Mapped as MDc in Flynn Creek structure, where it is about 200 feet thick.) (Also mapped as MDc on the East Sheet)
State Tennessee
Name Fort Payne Formation and Chattanooga Shale
Geologic age Mississippian
Lithologic constituents
Major
Sedimentary > Chemical > Chert
Minor
Sedimentary > Carbonate > Limestone
Sedimentary > Clastic > Mudstone > Shale
Incidental
Sedimentary > Clastic > Mudstone > Shale > Black-shale
Comments East-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 Cannon - Clay - Coffee - DeKalb - Fentress - Jackson - Macon - Overton - Pickett - Putnam - Smith - Trousdale - Warren - White - Wilson