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Map showing publication footprint
  • Usage in publication:
    • Hitchcock
  • Modifications:
    • First used
  • Dominant lithology:
    • Volcanics
  • AAPG geologic province:
    • New England province
    • Hartford basin
Publication:

Bain, G.W., 1941, The Holyoke Range and Connecticut Valley structure: American Journal of Science, v. 239, no. 4, p. 261-275.


Summary:

A series of volcanic cones piled on top of one another lie in Sugarloaf Arkose north of Mount Hitchcock. Underlies Holyoke lava. Thickness is 1,000 ft (300 m).

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


Map showing publication footprint
  • Usage in publication:
    • Hitchcock Volcanics
  • Modifications:
    • Named
  • Dominant lithology:
    • Volcanics
  • AAPG geologic province:
    • New England province
    • Hartford basin
Publication:

Brophy, G.P., Foose, R.M., Shaw, F.C., and Szekely, T.S., 1967, Triassic geologic features in the Connecticut Valley near Amherst, Massachusetts; Trip D, IN Guidebook for field trips in the Connecticut Valley of Massachusetts: New England Intercollegiate Geological Conference Guidebook, 59th annual meeting, Amherst, MA, October 13-15, 1967, p. 61-72.


Summary:

Volcanics near Mount Hitchcock, east of Mount Holyoke, are here named Hitchcock Volcanics.

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


Map showing publication footprint
  • Usage in publication:
    • Hitchcock Volcanics*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • New England province
Publication:

Zen, E-an (editor), Goldsmith, Richard (compiler), Ratcliffe, N.M. (compiler), Robinson, Peter (compiler), Stanley, R.S. (compiler), Hatch, N.L., Jr., Shride, A.F., Weed, E.G.A., and Wones, D.R., 1983, Bedrock geologic map of Massachusetts: U.S. Geological Survey [State Geologic Map], 3 sheets, scale 1:250,000


Summary:

Used as Hitchcock Volcanics of Early Jurassic age. Consists of nested cones of basaltic breccia containing abundant fragments of New Haven Arkose, locally intrusive into arkose near its base. Overlain by Holyoke Basalt and (or) Shuttle Meadow Formation. [No explanation given for age change.]

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


Map showing publication footprint
  • Usage in publication:
    • Hitchcock Volcanics*
  • Modifications:
    • Revised
    • Age modified
  • AAPG geologic province:
    • New England province
    • Hartford basin
Publication:

Robinson, Peter, and Luttrell, G.W., 1985, Revision of some stratigraphic names in central Massachusetts, IN Stratigraphic notes, 1984: U.S. Geological Survey Bulletin, 1605-A, p. A71-A78.


Summary:

The use of the name Hitchcock Volcanics follows that of Brophy and others (1967) and is assigned to the Newark Supergroup. It consists of nested cones of basaltic breccia containing abundant fragments of New Haven Arkose, locally intrusive into arkose near the base. It underlies the Shuttle Meadow Formation and (or) the Holyoke Basalt. Age is changed from Late Triassic to Early Jurassic.

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 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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