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Map showing publication footprint
  • Usage in publication:
    • Billings Hill formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
    • Granulite
Publication:

Guidotti, C.V., 1965, Geology of the Bryant Pond quadrangle, Maine: Maine Geological Survey Quadrangle Mapping Series, no. 3, 116 p., (incl. geologic map, scale 1:62,500), [Also published as Maine Geol. Survey Bull., no. 16.]


Summary:

Pg. 11 (table 1), 33-36, pls. 1, 2. Billings Hill formation [author does not capitalize rank terms; however, units are considered formal]. Coarse-grained rusty weathering migmatitic gneiss and some biotite granulite. Light fraction consists of pegmatitic quartz and plagioclase. Dark fraction consists mainly of coarse two-mica-sillimanite schist. Thickness 2,000 feet. Overlies Shagg Pond formation (new). Is top of Siluro-Devonian sequence immediately below the Devonian Littleton formation.Group (new).
Type locality: along brook that parallels Billings Hill Road on west side of Billings Hill, Bryant Pond quadrangle, Oxford Co., ME. Unit is present in broad belt that covers much of Spruce Mountain and Billings Hill.

Source: US geologic names lexicon (USGS Bull. 1350, p. 70).


Map showing publication footprint
  • Usage in publication:
    • Billings Hill Formation
  • Modifications:
    • Revised
  • AAPG geologic province:
    • New England province
Publication:

Warner, Jeffrey, and Pankiwskyj, K.A., 1965, Geology of the Buckfield and Dixfield quadrangles in northwestern Maine, IN Hussey, A.M., II, ed., Guidebook to field trips in southern Maine: New England Intercollegiate Geological Conference Guidebook, 57th annual meeting, Brunswick, ME, October 8-10, 1965, p. 103-108.


Summary:

Pg. 112 (fig. 2). Billings Hill Formation included in Woodstock Group (new).

Source: US geologic names lexicon (USGS Bull. 1350, p. 70).


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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