U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Bottom Creek Suite
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
    • Granite
  • 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 Bottom Creek Suite is here named in the Pedlar massif in the Blue Ridge of VA. It is a charnockite suite and contains mesocharnockite, megaporphyry, and porphyroblastic gneiss rock types. Age is Middle Proterozoic.

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


Map showing publication footprint
  • Usage in publication:
    • Bottom Creek Charnockite 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:

Bottom Creek is dominant unit of the Pedlar massif. Petrographically similar to the charnockites and jotunites of the Pedlar River Suite. Contains porphyroblastic charnockite and a few small bodies of mafic jotunite/norite. Foliation due to alignment of feldspar porphyroblasts and mafic minerals (pyroxene and garnet). Ultramafic rocks occur only as a few small dikes.

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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 03:13:50 PM MDT