State | New Jersey |
---|---|
Name | Biotite-quartz-oligoclase gneiss |
Geologic age | Middle Proterozoic |
Lithologic constituents |
Major
Metamorphic > Gneiss > Biotite-gneissWhite- to light-gray-weathering, light- to medium-gray or greenish-gray, fine- to coarse-grained, massive to moderately well layered, foliated gneiss composed of oligoclase or andesine, quartz, biotite, and, locally, garnet.
Minor
Metamorphic > Amphibolite
|
References | Dalton, R.F., Herman, G.C., Monteverde, D.H., Pristas, R.S., Sugarman, P.J., and Volkert, R.A., 1999, New Jersey Department of Environmental Protection, Bedrock Geology and Topographic Base Maps of New Jersey: New Jersey Geological Survey CD Series CD 00-1; ARC/INFO (v. 7.1), scale 1:100,000.Drake, Avery A. Jr.,Volkert, Richard, A., Monteverde, Donald H., Herman, Gregory C., Houghton,Hugh F., Parker, Ronald A., and Dalton, Richard F., 1996, Bedrock Geologic Map of Northern New Jersey: U.S. Geological Survey Miscellanenous Investigations Map I-2540-A, 4 cross sections, 2 sheets, size 56x40; 58x41, scale 1:100.000.https://pubs.er.usgs.gov/publication/i2540A |
NGMDB product | |
Counties | Bergen - Hunterdon - Morris - Passaic - Sussex - Warren |