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  • Usage in publication:
    • Alexandria Bay Gneiss
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • Adirondack uplift
Publication:

Wiener, R.W., McLelland, J.M., Isachsen, Y.W., and Hall, L.M., 1984, Stratigraphy and structural geology of the Adirondack Mountains, New York; review and synthesis, IN Bartholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological Society of America Special Paper, 194, p. 1-55.


Summary:

Pink and gray fine-grained leucogranitic gneiss in Alexandria Bay, NY, are here named the Alexandria Bay Gneiss of the Piseco Group. Overlies the Pharaoh Mountain Gneiss and is the basal unit of the Piseco Group exposed in the Northwest Lowlands. It is equivalent to the Brant Lake Gneiss in the central and eastern Adirondacks. Unconformably underlies the Baldface Hill Gneiss of the Oswegatchie Group. Thickness is 1,200 m. Age is Proterozoic.

Source: GNU records (USGS DDS-6; Reston GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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