Pottsville Formation (ALPApv;3)

Pottsville Formation - Light-gray thin to thick-bedded quartzose sandstone and conglomerate containing interbedded dark-gray shale, siltstone, and coal. Mapped on Lookout Mountain, Blount and Chandler Mountains, and Sand Mountain northeats of Blount County, and on the mountains of Jackson, Marshall and Madison Counties north and west of the TN river.

State	Alabama
Name	Pottsville Formation
Geologic age	Pennsylvanian
Original map label	Ppv
Primary rock type	sandstone
Secondary rock type	conglomerate
Other rock types	shale; siltstone; coal
Lithologic constituents	Major Sedimentary > Clastic > Conglomerate (Bed)conglomerate containing interbedded dark-gray shale, siltstone, and coal. Sedimentary > Clastic > Sandstone (Bed)Light-gray thin to thick-bedded quartzose sandstone Minor Sedimentary > Coal (Bed)conglomerate containing interbedded dark-gray shale, siltstone, and coal. Sedimentary > Clastic > Siltstone (Bed)conglomerate containing interbedded dark-gray shale, siltstone, and coal. Sedimentary > Clastic > Mudstone > Shale (Bed)conglomerate containing interbedded dark-gray shale, siltstone, and coal.
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	Blount - Cherokee - DeKalb - Etowah - Jackson - Jefferson - Madison - Marshall - Saint Clair