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National Geologic Map Database
Geologic Unit: Litchfield
Map showing publication footprint
  • Usage in publication:
    • Litchfield Schist
  • Modifications:
    • First used
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • New England province
Publication:

Panish, P.T., 1992, The Mt. Prospect region of western Connecticut; mafic plutonism in Iapetus-sequence strata and thrust emplacement onto the North American margin, IN Robinson, Peter, and Brady, J.B., eds., Guidebook for field trips in the Connecticut Valley region of Massachusetts and adjacent states; Volume 2: University of Massachusetts, Department of Geosciences Contribution, New England Intercollegiate Geological Conference, 84th annual meeting, Amherst, MA, October, 9-11, 1992, no. 66, p. 398-423.


Summary:

Litchfield included in Hartland Group in the Bantam Lake thrust sheet, along with Mt. Tom Amphibolite. Hartland Group in the Cameron's Line thrust sheet includes the Mt. Prospect [Prospect] Formation, the Mt. Rat Schist, and the Bee Brook Formation. Litchfield Schist is described as silver-gray, garnet-biotite-oligoclase-quartz-muscovite schist with laminated quartzites, locally abundant staurolite and/or kyanite, and minor coticule layers.

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


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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