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    Cambrian - Connasauga shale; Rome formation; Apison shale (1)
    Carboniferous - Walden sandstone; Lookout sandstone; Bangor limestone; Floyd shale; Fort Payne chert (1)
    Devonian - Chattanooga black shale (1)
    Geology -- United States --Maps (1)
    Geology--Georgia--Maps (1)
    Geology--Tennessee--Maps (1)
    Silurian - Chickamauga limestone; Knox dolomite (1)