Copper Ridge Dolomite

Light-gray finely to coarsely crystalline, thick-bedded siliceous dolomite; characterized by abundant stromatolitic chert. Mapped seperately only in the Birmingham anticlinorium where overlying units within the Knox Group are absent beneath the post-Knox unconformity.
State Alabama
Name Copper Ridge Dolomite
Geologic age Cambrian
Lithologic constituents
Major
Sedimentary > Chemical > Chert (Bed)characterized by abundant stromatolitic chert
Sedimentary > Carbonate > Dolostone (Bed)light-gray finely to coarsely crystalline, thick-bedded siliceous dolomite
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 Bibb - Jefferson - Tuscaloosa