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Knox Group undifferentiated in part

Knox Group undifferentiated in part - light-gray to light-brown locally sandy dolomite, dolomitic limestone, and limestone; characterized by abundant light-colored chert.
StateAlabama
NameKnox Group undifferentiated in part
Geologic ageOrdovician-Cambrian
Original map labelOCk
Primary rock typedolostone (dolomite)
Secondary rock typelimestone
Other rock typeschert
Lithologic constituents
Major
Sedimentary > Carbonate > Limestonedolomitic limestone, and limestone
Sedimentary > Carbonate > Dolostonelight-gray to light-brown locally sandy dolomite, dolomitic limestone
Minor
Sedimentary > Chemical > Chert
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.

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