Heflin Phyllite

Grayish-green, medium-gray, and medium-bluish-gray calcareous sandy metasiltstone interbedded with minor greenish-gray fine to coarse-grained metasandstone and rare thin lenses of calcite and dolomite marble; an interval of greenish-gray to dark-gray phyllitic quartzite or quartz-pebble metaconglomerate is locally present near the base. The Heflin underlies the Lay Dam Formation and overlies the rocks tentatively identified as the Chilhowee Group undifferentiated.
State Alabama
Name Heflin Phyllite
Geologic age Cambrian?
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Metasiltstonegrayish-green, medium-gray, and medium-bluish-gray calcareous sandy metasiltstone interbedded with minor greenish-gray fine to coarse-grained metasandstone; an interval of greenish-gray to dark-gray phyllitic quartzite or quartz-pebble metaconglomerate is locally present near the base.
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzitean interval of greenish-gray to dark-gray phyllitic quartzite
Metamorphic > Metasedimentary > Metaclastic > Metasandstonegrayish-green, medium-gray, and medium-bluish-gray calcareous sandy metasiltstone interbedded with minor greenish-gray fine to coarse-grained metasandstone; an interval of greenish-gray to dark-gray phyllitic quartzite or quartz-pebble metaconglomerate is locally present near the base.
Incidental
Metamorphic > Metasedimentary > Metacarbonate > Marblerare thin lenses of calcite and dolomite marble
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 Calhoun - Cleburne - Talladega