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Map showing publication footprint
  • Usage in publication:
    • Canaan Mountain formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • New England province
Publication:

Rodgers, John, Gates, R.M., and Rosenfeld, J.L., 1956, Preliminary geological map of Connecticut: Connecticut Geological and Natural History Survey, See also "Explanatory text for preliminary geological map of Connecticut, 1956," Connecticut Geol. Nat. Hist. Survey Bull., no. 84, 64 p., 1959


Summary:

Named for Canaan Mountain in town of Canaan, Litchfield Co., northwestern CT. Consists of predominantly schist composed of quartz, oligoclase or andesine, biotite, garnet, or sillimanite. Age is pre-Triassic.

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


Map showing publication footprint
  • Usage in publication:
    • Canaan Mountain Schist*
  • Modifications:
    • Areal extent
    • Age modified
  • AAPG geologic province:
    • New England province
Publication:

Ratcliffe, N.M., 1974, Bedrock geologic map of the State Line quadrangle, Columbia County, New York, and Berkshire County, Massachusetts: U.S. Geological Survey Geologic Quadrangle Map, GQ-1142, 1 sheet, scale 1:24,000 [http://ngmdb.usgs.gov/Prodesc/proddesc_10682.htm]


Summary:

Canaan Mountain Schist of Rodgers (1959) used in small inset map showing relationship of State Line quad to regional geology. Canaan Mountain Schist doesn't occur in State Line quad, but is shown southeast of there on June Mountain in MA and on Canaan Mountain in CT. Age is changed to Precambrian and (or) Cambrian and (or) Ordovician. [Although a USGS report, name still not adopted for USGS use; thus the phrasing "of Rodgers (1959)," which refers to the belatedly published map explanation of the 1956 preliminary State geologic map.]

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


Map showing publication footprint
  • Usage in publication:
    • Canaan Mountain Formation*
  • Modifications:
    • Revised
    • Age modified
  • AAPG geologic province:
    • New England province
Publication:

Harwood, D.S., 1979, Bedrock geologic map of the Norfolk quadrangle, Connecticut: U.S. Geological Survey Geologic Quadrangle Map, GQ-1518, 1 sheet, scale 1:24,000, Prepared in cooperation with Connecticut Geol. Nat. Hist. Survey [http://ngmdb.usgs.gov/Prodesc/proddesc_1068.htm]


Summary:

Revised as Canaan Mountain Formation to accommodate the wide range of arenaceous, pelitic, and volcaniclastic rocks present in the unit. Age changed to late Precambrian(?) to Early Cambrian based on structural and stratigraphic interpretations. Canaan Mountain is part of a series of lithofacies (Dalton, Everett, Canaan Mountain, and Waramaug Formations) that were telescoped into present positions by Paleozoic thrust faults.

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


Map showing publication footprint
  • Usage in publication:
    • Canaan Mountain Formation*
  • Modifications:
    • Areal extent
  • 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:

Canaan Mountain Formation. Rusty-weathering, coarse garnet schist and feldspathic schist. Age is Proterozoic Z and [Early Cambrian].
Notable exposures in Canaan area, east of Berkshire Highlands, Taconic-Berkshire zone, Litchfield Co., CT.
[Misprint: stratigraphic range shown as Lower Ordovician and Proterozoic Z; should be Lower Cambrian and Proterozoic Z.]

Source: Publication.


Map showing publication footprint
  • Usage in publication:
    • Canaan Mountain Schist*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • New England province
Publication:

Rodgers, John, 1985, Bedrock geological map of Connecticut: Connecticut Geological and Natural History Survey, scale 1:125,000


Summary:

Used as Canaan Mountain Schist of Cambrian(?) age.

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 ( ).

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