Silurian System undivided (Includes Wayne Group and Brassfield Limestone) (ALSu;2)

Silurian System undivided (Includes Wayne Group and Brassfield Limestone)

Wayne Group - medium-gray, greenish-gray, and moderate-red argillaceous limestone; moderate-red and greenish-gray shale; and grayish-green fossiliferous limestone with scattered pink calcite crystals. Brassfield Limestone - greenish-gray to light-brownish-gray argillaceous, dolomitic, cherty, sandy, glauconitic limestone.

State	Alabama
Name	Silurian System undivided (Includes Wayne Group and Brassfield Limestone)
Geologic age	Silurian
Lithologic constituents	Major Sedimentary > Carbonate > Limestonemedium-gray, greenish-gray, and moderate-red argillaceous limestone; grayish-green fossiliferous limestone with scattered pink calcite crystals; greenish-gray to light-brownish-gray argillaceous, dolomitic, cherty, sandy, glauconitic limestone. Minor Sedimentary > Carbonate > Dolostonegreenish-gray to light-brownish-gray argillaceous, dolomitic, cherty, sandy, glauconitic limestone. Sedimentary > Clastic > Mudstone > Shalemoderate-red and greenish-gray shale Incidental Sedimentary > Chemical > Chertgreenish-gray to light-brownish-gray argillaceous, dolomitic, cherty, sandy, glauconitic limestone.
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	Lauderdale - Madison

Silurian System undivided (Includes Wayne Group and Brassfield Limestone)

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.