Amphibolite and Biotite Gneiss

Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock.
State North Carolina
Name Amphibolite and Biotite Gneiss
Geologic age Cambrian/Late Proterozoic
Lithologic constituents
Metamorphic > Gneiss > Biotite-gneissBiotite Gneiss, interlayered; minor layers and lenses of hornblende gneiss
Metamorphic > Amphibolite
Metamorphic > Metaigneous > Metaintrusive > Metagabbrominor layers and lenses of metagabbro
Igneous > Plutonic > Graniticminor layers and lenses of granitic rock
Metamorphic > Schist > Mica-schistminor layers and lenses of mica schist

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 Alexander - Burke - Catawba - Gaston - Henderson - Iredell - Lincoln - McDowell - Rutherford