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Geologic Unit: Woodbridge
Map showing publication footprint
  • Usage in publication:
    • Woodbridge Granite*
  • Modifications:
    • Named
  • Dominant lithology:
    • Granite
  • AAPG geologic province:
    • New England province
Publication:

Fritts, C.E., 1962, Age and sequence of metasedimentary and metavolcanic formations northwest of New Haven, Connecticut; Article 128, IN Geological Survey Research 1962; short papers in geology, hydrology, and topography; Articles 120-179: U.S. Geological Survey Professional Paper, 450-D, p. D32-D36.


Summary:

Pg. D32-D36. Woodbridge Granite. Oligoclase granite or sodic quartz diorite. Intruded Wepawaug Schist (new) before climax of progressive regional metamorphism in Devonian time.
Type locality: southwest corner of Mount Carmel quadrangle, New Haven Co., south-central CT. Named from Woodbridge.

Source: US geologic names lexicon (USGS Bull. 1350, p. 837).


Map showing publication footprint
  • Usage in publication:
    • Woodbridge Granite*
  • Modifications:
    • Mapped
  • Dominant lithology:
    • Granite
  • AAPG geologic province:
    • New England province
Publication:

Fritts, C.E., 1963, Bedrock geology of the Mount Carmel quadrangle, Connecticut: U.S. Geological Survey Geologic Quadrangle Map, GQ-199, 1 sheet, scale 1:24,000


Summary:

Mapped in Mount Carmel quadrangle which contains type locality.

Source: US geologic names lexicon (USGS Bull. 1350, p. 837).


Map showing publication footprint
  • Usage in publication:
    • Woodbridge Granite*
  • Modifications:
    • Geochronologic dating
  • AAPG geologic province:
    • New England province
Publication:

Marvin, R.F., and Dobson, S.W., 1979, U.S. Geological Survey radiometric ages; Compilation "B": Isochron/West, no. 26, p. 3-32.


Summary:

Pg. 15, geologic time scale (inside front cover). Woodbridge Granite (Devonian). Sample from [type area], Lat. 41 deg. 23 min. 00 sec. N., Long. 72 deg. 59 min. 35 sec. W., Mount Carmel quadrangle, New Haven County, Connecticut, yielded Pb-alpha age of 890 +/-100 Ma (zircon); too old [Precambrian Y to Z]. Age published by Fritts (1962); recalculated using decay constants of Steiger and Jager (Earth Planet. Sci. Letters, v. 36, p. 359-362, 1977).

Source: Publication.


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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