Tuscaloosa Group undifferentiated (ALKt;1)

Tuscaloosa Group undifferentiated

Light-gray to moderate-reddish-orange clayey, gravelly fine to very coarse sand; massive mottled sandy clay; local wood and leaf beds; and thin beds of indurated sandstone. Gravel consists mainly of quartz and quartzite and range in size from very fine pebbles to large cobbles. Mapped eats of the Tallapoosa River.

State	Alabama
Name	Tuscaloosa Group undifferentiated
Geologic age	Cretaceous
Lithologic constituents	Major Unconsolidated > Coarse-detrital > Sand (Bed)Light-gray to moderate-reddish-orange clayey, gravelly fine to very coarse sand Unconsolidated > Coarse-detrital > Gravel (Bed)gravelly fine to very coarse sand; gravel consists mainly of quartz and quartzite and range in size from very fine pebbles to large cobbles. Unconsolidated > Fine-detrital > Clay (Bed)massive mottled sandy clay Minor Metamorphic > Metasedimentary > Metaclastic > QuartziteGravel consists mainly of quartz and quartzite and range in size from very fine pebbles to large cobbles. Sedimentary > Clastic > Sandstone (Bed)thin beds of indurated sandstone
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	Lee - Macon - Russell - Tallapoosa

Tuscaloosa Group 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.