Wilcox Group; Tuscahoma Sand (ALPNtu;1)

Tuscahoma Sand - (Wilcox Group), Light-gray to light-olive-gray laminated and thin-bedded carbonaceous silt and clay interbedded with fine sand; thin lignite beds occur locally. Lower part of the formation includes beds of fossiliferous, glauconitic fine quartz sand containing speroidal sandstone concretions, gravel and clay pebbles.

State	Alabama
Name	Wilcox Group; Tuscahoma Sand
Geologic age	Paleocene
Original map label	Ttu
Primary rock type	clay or mud
Secondary rock type	silt
Other rock types	sand; coal; sandstone; gravel
Lithologic constituents	Major Unconsolidated > Fine-detrital > Clay (Bed) Unconsolidated > Fine-detrital > Silt (Bed) Minor Unconsolidated > Coarse-detrital > Sand (Bed)Lower part of the formation includes beds of fossiliferous, glauconitic fine quartz sand containing speroidal sandstone concretions. Incidental Sedimentary > Clastic > SandstoneLower part of the formation includes beds of fossiliferous, glauconitic fine quartz sand containing speroidal sandstone concretions. Sedimentary > Coal > Lignite (Bed) Unconsolidated > Coarse-detrital > Gravel
Map references	Szabo, M. W., Osborne, E. W., Copeland, C. W. Jr., Neathery; T. L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000. [http://www.ogb.state.al.us/ogb/ogb_gisdata/algeomap.zip]
Unit references	Szabo, M. W., Osborne, E. W., Copeland, C. W. Jr., Neathery; T. L., 1988, Geologic Map of Alabama, Geological Survey of Alabama Special Map 220, scale 1:250,000. [http://www.ogb.state.al.us/ogb/ogb_gisdata/algeomap.zip]
Geographic coverage	Barbour - Butler - Choctaw - Clarke - Coffee - Conecuh - Covington - Crenshaw - Dale - Henry - Marengo - Monroe - Pike - Sumter - Wilcox