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Map showing publication footprint
  • Usage in publication:
    • Thunderbolt Mountain
  • Modifications:
    • Overview
  • 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:

The informal Thunderbolt Mountain Formation of Walton and deWaard (1963) is here used and assigned to the Lake George Group in the eastern Adirondacks, NY. It consists of gray-green, charnockitic gneiss and pink, granitic gneiss interlayered with amphibolite, garnet granulite, garnet-biotite-quartz-plagioclase gneiss, and quartzite. Structurally overlies the Springhill Pond Formation of the Lake George Group and correlates with the Little Moose Mountain Formation in the central Adirondacks. 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 ( ).

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