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Map showing publication footprint
  • Usage in publication:
    • Hall Stream Member
  • Modifications:
    • Mapped 1:250k
  • Dominant lithology:
    • Grit
    • Schist
    • Amphibolite
  • AAPG geologic province:
    • New England province
Publication:

Doll, C.G., Cady, W.M., Thompson, J.B., Jr., and Billings, M.P., 1961, Centennial geologic map of Vermont: Vermont Geological Survey, scale 1:250,000


Summary:

Mapped as Hall Stream member of Gile Mountain formation. Highly feldspathic grit, probably of volcanic origin and feldspathic chlorite-ankerite schist and amphibolite. Unit is uppermost member of Gile Mountain. Age is Early Devonian.
Occurs northeast of Nulhegan River, [Averill 15-min quadrangle, Essex Co., northeasternmost VT].
[Typographical error on map: the name should be Halls Stream.]

Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 1650-1651); GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Halls Stream Grits [unranked]
  • Modifications:
    • Principal reference
    • Mapped 1:62.5k
  • Dominant lithology:
    • Grits
  • AAPG geologic province:
    • New England province
Publication:

Myers, P.B., Jr., 1964, Geology of the Vermont portion of the Averill quadrangle, Vermont: Vermont Geological Survey Bulletin, no. 27, 69 p., (incl. geologic maps, scale 1:62,500)


Summary:

Pg. 24, 25, 27, pl. 1 (geol. map). Halls Stream Grits [unranked] in Giles Mountain Formation. Name Halls Stream applied to grits that occur in lenses in Gile Mountain Formation in Averill area, Vermont and New Hampshire [not mapped in New Hampshire]. Do not appear to be related to Sherbrooke grits, hence name Sherbrooke not applicable in area. Halls Stream volcanics also used in report. Age is Early Devonian.
[Type area]: excellent outcrops along eastern slopes of Halls Stream valley about 3.5 mi north of Beecher Falls (Essex Co., northeastern VT), north of VT-NH State line and along the International border, [in area around Lat. 45 deg. 03 min. N., Long. 71 deg. 30 min., western edge Pittsburg 7.5-min quadrangle, Coos Co., northern NH]. Name credited to Prof. James B. Thompson, Jr., Harvard Univ.

Source: Publication; US geologic names lexicon (USGS Bull. 1350, p. 316).


Map showing publication footprint
  • Usage in publication:
    • grit lenses at Halls Stream (informal)
  • Modifications:
    • Mapped 1:250k
  • Dominant lithology:
    • Grits
  • AAPG geologic province:
    • New England province
Publication:

Moench, R.H., Boone, G.M., Bothner, W.A., Boudette, E.L., Hatch, N.L., Jr., Hussey, A.M., II, Marvinney, R.G., and Aleinikoff, J.N., 1995, Geologic map of the Sherbrooke-Lewiston area, Maine, New Hampshire, and Vermont, United States, and Quebec, Canada: U.S. Geological Survey Miscellaneous Investigations Series Map, I-1898-D, 2 sheets, 56 p., scale 1:250,000, Prepared in cooperation with Maine and New Hampshire geol. surveys


Summary:


Map showing publication footprint
  • Usage in publication:
    • grits at Halls Stream (informal)
  • Modifications:
    • Mapped 1:250k
  • Dominant lithology:
    • Grits
  • AAPG geologic province:
    • New England province
Publication:

Lyons, J.B., Bothner, W.A., Moench, R.H., and Thompson, J.B., Jr., 1997, Bedrock geologic map of New Hampshire: U.S. Geological Survey [State Geologic Map], 2 sheets, scale 1:250,000 and 1:500,000, Prepared in cooperation with DOE and State of New Hampshire


Summary:

grits at Halls Stream (informal) in Ironbound Mountain Formation. Thick-bedded feldspathic volcaniclastic grit and interbedded gray slate. Exposed in northern New Hampshire. Equivalent to Grenier Ponds Member of Ironbound Mountain Formation in western Maine. Age is Early Devonian.

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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