Ashe Metamorphic Suite and Tallulah Falls Formation; Muscovite-biotite gneiss

Locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss.
State North Carolina
Name Ashe Metamorphic Suite and Tallulah Falls Formation; Muscovite-biotite gneiss
Geologic age Late Proterozoic
Lithologic constituents
Major
Metamorphic > GneissMuscovite-biotite gneiss - locally sulfidic; interlayered and gradational with hornblende gneiss
Metamorphic > Schist > Mica-schistinterlayered and gradational with mica schist
Minor
Metamorphic > Amphibolite
References

Rhodes, Thomas S., and Conrad, Stephen G., 1985, Geologic Map of North Carolina: Department of Natural Resources and Community Development, Division of Land Resources, and the NC Geological Survey, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the State Geologic Map Advisory Committee, scale 1:500,000.

The North Carolina Dept. of Environment, Health, and Natural Resources, Division of Land Resources, NC Geological Survey, in cooperation with the NC Center for Geographic Information and Analysis, 1998 (updated 2007), Geology - North Carolina (1:250,000), coverage data file geol250. The data represents the digital equivalent of the official State Geology map (1:500,000 scale), but was digitized from (1:250,000 scale) base maps.

NGMDB product
Counties Alleghany - Ashe - Avery - Buncombe - Haywood - Henderson - Jackson - Macon - Madison - Mitchell - Transylvania - Watauga - Yancey