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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Hamilton group
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
    • Sandstone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Vanuxem, Lardner, 1840, Fourth annual report of the Geological Survey of the third district: New York Geological Survey Annual Report, no. 4, p. 355-383.


Summary:

Named Hamilton group for Hamilton, Madison Co., NY. Consists of shales of dark-blue and olive colors and sandstone. West Hamilton is locality where the group is well characterized. The Hamilton underlies the Moscow shales and overlies the Skaneateles shales. Near Cayuga Lake it is separated from the Moscow by encrinal limestone. The Hamilton is of Middle Devonian age.

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


Map showing publication footprint
  • Usage in publication:
    • Hamilton Group*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin

Map showing publication footprint
  • Usage in publication:
    • Hamilton Group*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Appalachian basin
Publication:

Oliver, W.A., Jr., and Sorauf, J.E., 1994, Branching Heliophyllum (Devonian rugose corals) from New York and Ohio: Journal of Paleontology, v. 68, no. 6, p. 1183-1201.


Summary:

Author follows usage of Baird (1979). Hamilton Group shown on figure 2 as including (ascending) Ludlowville Formation (with its Wanakah Shale Member and Jaycox Shale Member) and Moscow Formation (with its Tichenor Limestone Member, Deep Run Shale Member, Menteth Limestone Member, Kashong Shale Member, and Windom Shale Member).

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


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

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).