Palisade Diabase

Palisade Diabase
State New York
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.
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