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Map showing publication footprint
  • Usage in publication:
    • Lady Slipper Granulite Gneiss
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Volcanics
    • Gneiss
  • AAPG geologic province:
    • Appalachian basin
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 Lady Slipper Granulite Gneiss, here named, is a sequence of metavolcanic rocks in the Pedlar massif in the western parts of the Buena Vista and Cornwall quadrangles, VA. It consists of light-gray, medium-grained layered to massive gneiss with quartz, plagioclase, hypersthene, garnet, and biotite. Intruded by the Pedlar River Charnockite Suite. Age is Middle Proterozoic, based on a concordia intercept age of 1130 Ma.

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


Map showing publication footprint
  • Usage in publication:
    • Lady Slipper Gneiss*
  • Modifications:
    • Geochronologic dating
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Rankin, D.W. (editor), Chiarenzelli, J.R., Drake, A.A., Jr., Goldsmith, Richard, Hall, L.M., Hinze, W.J., Isachsen, Y.W., Lidiak, E.G., McLelland, James, Mosher, Sharon, Ratcliffe, N.M., Secor, D.T., Jr., and Whitney, P.R., 1993, Proterozoic rocks east and southeast of the Grenville Front, IN Reed, J.C., Jr., and others, eds., Precambrian; conterminous U.S.: Geological Society of America, The Geology of North America, The Decade of North American Geology (DNAG), v. C-2, p. 335-461.


Summary:

Used as Lady Slipper Gneiss in table 6. Isotopic ages include 207Pb/206Pb age of 1069 Ma (Sinha and Bartholomew, 1984) and a U-Pb zircon upper intercept age of 1111 Ma (calculated by T.W. Stern from existing data).

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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