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  • Usage in publication:
    • Humpback gneiss
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Hunter, C.E., and Mattocks, P.W., 1936, Geology and kaolin deposits of Spruce Pine and Linville Falls quadrangles, North Carolina, IN Clay resources of Tennessee Valley Authority region; Part 1: Tennessee Valley Authority, Division of Geology Bulletin, no. 4, p. 10-23.


Summary:

Name Humpback gneiss introduced in this report for a light-gray rock of sedimentary origin occurring along Humpback Mountain in Burke Co., northwestern NC. Unit is composed mostly of fragments of feldspar and quartz in matrix of secondary micas, chlorites, and other metamorphic minerals. A thin yellowish clay schist is commonly interbedded with the more coarse and thick-bedded materials. Age given as Precambrian (Archean?).

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 ( ).

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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