Amphibolite (NCCAZam;1)

State	North Carolina
Name	Amphibolite
Geologic age	Cambrian/Late Proterozoic
Original map label	CZam
Primary rock type	amphibolite
Secondary rock type	basalt
Other rock types	diorite
Lithologic constituents	Major Metamorphic > Amphibolite (Amphibolite)equigranular, massive to well foliated Minor Igneous > Plutonic > Dioritic (Dike or sill)dioritic to basaltic dikes and sills; variably metamorphosed. Igneous > Volcanic > Mafic-volcanic > Basalt (Dike or sill)dioritic to basaltic dikes and sills; variably metamorphosed.
Map references	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, 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.
Unit 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, 1:500,000-scale, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the State Geologic Map Advisory Committee. 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, 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.
Geographic coverage	Cherokee - Franklin - Granville - Iredell - Johnston - Rockingham - Stokes - Surry - Swain - Wake - Warren - Yadkin