State | Alabama |
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Name | Talladega Group; Jemison Chert and Chulafinnee Schist undifferentiated |
Geologic age | Silurian?-Devonian |
Lithologic constituents |
Major
Metamorphic > Schistlight to dark-greenish-gray fine to medium-grained fissile quartz-sericite-chlorite phyllite and schist
Minor
Metamorphic > Metasedimentarylocally argillaceous, locally fossiliferous metachert
Metamorphic > Metasedimentary > Metaclastic > Phyllitelight to dark-greenish-gray fine to medium-grained fissile quartz-sericite-chlorite phyllite and schist which locally includes thin chlorite phyllite and quartzose phyllite beds.
|
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 | Chilton - Clay - Cleburne - Coosa - Talladega |