State | Alabama |
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Name | Chickamauga Limestone |
Geologic age | Ordovician |
Lithologic constituents |
Major
Sedimentary > Carbonate > Limestone (Bed)Medium to dark-gray thick to thin-bedded partly argillaceous, locally fossiliferous limestone.
Minor
Sedimentary > Chemical > ChertAttalla Chert - conglomerate of pebbles, cobbles, and boulders of chert and rare dolomite and quartzite in a sand-sized chert and quartz matrix.
Sedimentary > Clastic > Conglomerate (Bed)Attalla Chert - conglomerate of pebbles, cobbles, and boulders of chert and rare dolomite and quartzite in a sand-sized chert and quartz matrix.
Incidental
Sedimentary > Carbonate > DolostoneAttalla Chert - conglomerate of pebbles, cobbles, and boulders of chert and rare dolomite and quartzite in a sand-sized chert and quartz matrix.
Sedimentary > Clastic > Mudstone > Shalethin beds of gray-green or dusky-red shale common at base.
Metamorphic > Metasedimentary > Metaclastic > QuartziteAttalla Chert - conglomerate of pebbles, cobbles, and boulders of chert and rare dolomite and quartzite in a sand-sized chert and quartz matrix.
|
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 | |
Counties | Blount - DeKalb - Etowah - Jefferson - Saint Clair |