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Map showing publication footprint
  • Usage in publication:
    • Horsepen Mountain Suite
  • Modifications:
    • Named
  • Dominant lithology:
    • Diorite
    • Charnockite
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Bartholomew, M.J., and Lewis, S.E., 1984, Evolution of Grenville massifs in the Blue Ridge geologic province, southern and central Appalachians, IN Bartholomew, M.J., ed., The Grenville event in the Appalachians and related topics: Geological Society of America Special Paper, 194, p. 229-254.


Summary:

The Horsepen Mountain Suite is here named in the Lovingston massif in the Blue Ridge of Virginia. It consists of biotite dioritoid and charnockite. Age is Middle Proterozoic.

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


Map showing publication footprint
  • Usage in publication:
    • Horsepen Mountain Suite*
  • Modifications:
    • Overview
  • 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:

Horsepen Mountain Suite is used in table 5 of report.

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


Map showing publication footprint
  • Usage in publication:
    • Horsepen Mountain Suite
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Bartholomew, M.J., Henika, W.S., and Lewis, S.E., 1994, Geologic and structural transect of the New River Valley; Valley and Ridge and Blue Ridge provinces, southwestern Virginia, IN Schultz, Art, and Henika, Bill, Fieldguides to Southern Appalachian structure, stratigraphy, and engineering geology: Virginia Polytechnic Institute and State University, Department of Geological Sciences Guidebook, Geological Society of America, Southeastern Section, annual meeting, Blacksburg, VA, April 7-9, 1994, no. 10, p. 177-228.


Summary:

Horsepen Mountain Suite in the Roanoke area is separated by a few miles from the Little River Gneiss, which is an augen-bearing biotite gneiss. Granite is found throughout intervening area. It seems likely, according to authors, that the granite and the Little River Gneiss are part of the Horsepen Mountain Suite. The Suite is predominantly coarse-grained ferrodiorite associated with coarse-grained jotunite, granite, abundant biotite augen gneiss, and fine- to medium-grained, porphyritic dikes.

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


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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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