Sequatchie Formation, Colvin Mountain Sandstone, Greensport Formation undifferentiated (ALOscmg;5)

Sequatchie Formation, Colvin Mountain Sandstone, Greensport Formation undifferentiated

Variegated dusky-red and pale-yellowish-orange shale, calcareous mudstone, dolomite, siltstone, and minor sandstone. Mapped in areas of facies transition with the Chickamauga Limestone (Canoe Creek, Dunaway, and Hensley Mountains).

State	Alabama
Name	Sequatchie Formation, Colvin Mountain Sandstone, Greensport Formation undifferentiated
Geologic age	Ordovician
Lithologic constituents	Major Sedimentary > Carbonate > Dolostone (Bed) Sedimentary > Clastic > Mudstone > Shale (Bed) Sedimentary > Clastic > Mudstone (Bed, Calcareous) Minor Sedimentary > Clastic > Sandstone (Bed) Sedimentary > Clastic > Siltstone (Bed)
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	Etowah - Saint Clair

Sequatchie Formation, Colvin Mountain Sandstone, Greensport Formation 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.