State | New Jersey |
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Name | Quartz-Oligoclase Gneiss |
Geologic age | Middle Proterozoic |
Lithologic constituents |
Major
Metamorphic > GneissWhite-weathering, light-greenish-gray, medium- to coarse-grained, moderately layered to indistinctly foliated gneiss.
Minor
Metamorphic > Amphibolite
Metamorphic > Granoblastic > Granofelslesser amounts of granofels composed of quartz, oligoclase or andesine, and, locally, biotite, hornblende and (or) clinopyroxene
|
Comments | Losee Metamorphic Suite (Middle Proterozoic) (Drake, 1984) |
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 Drake, A.A., Jr., 1984, The Reading Prong of New Jersey and eastern Pennsylvania; an appraisal of the rock relations and chemistry of a major Proterozoic terrane in the Appalachians, in Bartholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological Society of America Special Paper 194, p. 75-109. |
NGMDB product | |
Counties | Bergen - Hunterdon - Morris - Passaic - Somerset - Sussex - Warren |