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Athens Shale

Athens Shale - black graptolitic shale, locally contains interbedded dark-gray limestone.
StateAlabama
NameAthens Shale
Geologic ageOrdovician
Original map labelORa
CommentsNote: Printed map uses unit symbol 'Oa'; digital map uses 'ORa'; used ORa here.
Primary rock typeblack shale
Secondary rock typelimestone
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)black graptolitic shale
Minor
Sedimentary > Carbonate > Limestone (Bed)
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.
Geographic coverageCalhoun - Cherokee - Shelby - Talladega

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