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Red Mountain Formation

Red Mountain Formation - Interbedded yellowish-gray to moderate-red sandstone, siltstone and shale; greenish-gray to moderate-red fossiliferous partly silty and sandy limestone; few thin hematitic beds.
State Alabama
Name Red Mountain Formation
Geologic age Silurian
Primary rock type sandstone
Secondary rock type shale
Other rock types siltstone; limestone
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Clastic > Sandstone (Bed)
Minor
Sedimentary > Clastic > Siltstone (Bed)
Incidental
Sedimentary > Carbonate > Limestone (Bed)greenish-gray to moderate-red fossiliferous partly silty and sandy limestone
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.
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.
Counties Bibb - Blount - Calhoun - Cherokee - DeKalb - Etowah - Jackson - Jefferson - Marshall - Saint Clair - Tuscaloosa