Tuscumbia Limestone and Fort Payne Chert undifferentiated (ALMtfp;6)

Tuscumbia Limestone and Fort Payne Chert undifferentiated

Tuscumbia Limestone -- light to dark-gray fossiliferous and oolitic partly argillaceous and cherty limestone. Apparently present only along part of the northwest limb of the Coosa synclinorium. Fort Payne Chert -- dark-gray to light-gray limestone with abundant irregular light-gray chert nodules and beds. Commonly present below the Fort Payne is greenish-gray to grayish-red phosphatic shale (Maury Formation) which is mapped with the Tuscumbia Limestone and Fort Payne Chert undifferentiated.

State	Alabama
Name	Tuscumbia Limestone and Fort Payne Chert undifferentiated
Geologic age	Mississippian
Lithologic constituents	Major Sedimentary > Chemical > Chert (Bed)Tuscumbia Limestone - cherty limestone; Fort Payne Chert - abundant irregular light-gray chert nodules and beds Sedimentary > Carbonate > Limestone (Bed)Tuscumbia Limestone - light to dark-gray fossiliferous and oolitic partly argillaceous and cherty limestone; Fort Payne Chert - dark-gray to light-gray limestone Minor Sedimentary > Clastic > Mudstone > Shale > Phosphatic-shale (Bed)Commonly present below the Fort Payne is greenish-gray to grayish-red phosphatic shale (Maury Formation)
References	Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.
NGMDB product	NGMDB product page for 55859
Counties	Bibb - Calhoun - Cherokee - Chilton - Etowah - Jefferson - Saint Clair - Shelby - Talladega

Tuscumbia Limestone and Fort Payne Chert undifferentiated

Szabo, M.W., Osborne, E.W., Copeland, C.W. Jr., and Neathery, T.L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000.