Stockton Formation

Arkose, conglomerate, and mudstone.
State New York
Name Stockton Formation
Geologic age Upper Triassic
Lithologic constituents
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Mudstone
Sedimentary > Clastic > Sandstone > Arkose
Comments part of Newark Group 0-7000 ft. (0-2100 m). Age change to Middle to Upper Triassic as per USGS Lexicon website (ref. NY046) and reference NY011.

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.

Olsen, P.E., 1984, Comparative paleolimnology of the Newark Supergroup; a study of ecosystem evolution: Yale University, Department of Geology Ph.D. thesis, 726 p.

USGS Geologic Names lexicon found at:

NGMDB product
Counties Richmond