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  • Usage in publication:
    • Archer Mountain Suite
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Quartz monzonite
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Sinha, A.K., and Bartholomew, M.J., 1984, Evolution of the Grenville terrane in the central Virginia Appalachians, IN Bartholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological Society of America Special Paper, 194, p. 175-186.


Summary:

The Archer Mountain Suite, the informal Archer Mountain pluton of Bartholomew and others (1981), is here named in the Lovingston massif of the central Virginia Blue Ridge. It consists of biotite-quartz monzonite intruded by small massive charnockite plutons and coarse pegmatites. Age is Middle Proterozoic, based on U-Pb age of 1060 m.y.

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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