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Map showing publication footprint
  • Usage in publication:
    • Woodtick Gneiss*
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
  • 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. Woodtick Gneiss. Intruded Waterbury Gneiss but not known to have intruded rocks stratigraphically above this formation. Age is Precambrian(?).

Source: US geologic names lexicon (USGS Bull. 1350, p. 838).


Map showing publication footprint
  • Usage in publication:
    • Woodtick Gneiss*
  • Modifications:
    • Principal reference
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • New England province
Publication:

Fritts, C.E., 1963, Bedrock geology of the Southington quadrangle, Connecticut: U.S. Geological Survey Geologic Quadrangle Map, GQ-200, 1 sheet, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_652.htm]


Summary:

Woodtick Gneiss. Medium-grained, light- to medium-gray quartz diorite gneiss. Composed of calcic oligoclase to sodic andesine, quartz, biotite, microcline, muscovite, and garnet, with minor apatite, zircon, epidote, magnetite or ilmenite, rutile, and sphene. Emplaced probably in Precambrian time. No apparent relationship between emplacement of the Woodtick and formation of Waterbury dome. Largest body of Woodtick Gneiss not in center of dome. Type locality stated.
Type locality: about 1 mi southeast of Scoville Reservoir, Southington quadrangle, New Haven Co., central CT. Named from Woodtick.

Source: US geologic names lexicon (USGS Bull. 1350, p. 838).


Map showing publication footprint
  • Usage in publication:
    • Woodtick Gneiss*
  • 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). Woodtick Gneiss. Samples from quartz diorite gneiss, in Southington quadrangle, New Haven County, Connecticut, yielded Pb-alpha ages of 740 +/-160 Ma and 510 +/-50 Ma (zircon); reconnaissance ages, zircons may be detrital. Ages published by Fritts (1962); recalculated using decay constants of Steiger and Jager, 1977 (Earth Planet. Sci. Letters, v. 36, p. 359-362).

Source: Publication.


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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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