State | New York |
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Name | Palisade Diabase |
Geologic age | Early Jurassic |
Lithologic constituents | Major
Igneous > Volcanic > Mafic-volcanic > Basalt (Diabase)gray, white, and black dense rock composed mostly of plagioclase feldspar, augite, and quartz.
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Comments | part of Newark Group 0-7000 ft. (0-2100 m). Unit description and age change from USGS Lexicon website (ref. NY046) and reference NY003:Occurs in a belt that stretches northeast to southwest in the northwest portion of western Staten Island, NY, adjacent to a belt of Lockatong Formation. It is a gray, white, and black dense rock composed mostly of plagioclase feldspar, augite, and quartz, and exhibits very little weathering and fracturing (Pagano, 1994). |
References | Fisher, D.W., Isachsen, Y.W., and Rickard, L.V., 1970, Geologic Map of New York State, consisting of 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson, New York State Museum and Science Service, Map and Chart Series No. 15, scale 1:250,000.Pagano, T.S., 1994, The geology of western Staten Island, New York, north and south of the Fall Line, IN Benimoff, A.L., ed., Geology of Staten Island, New York; field guide and proceedings: Geological Association of New Jersey Annual Field Conference, v. 11, 11th Annual Meeting, October 14-15, 1994, p. 61-84.USGS Geologic Names lexicon found at: http://ngmdb.usgs.gov/Geolex/https://ngmdb.usgs.gov/Geolex/search |
NGMDB product | |
Counties | Richmond - Rockland |