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National Geologic Map Database
Geologic Unit: North Columbus
Map showing publication footprint
  • Usage in publication:
    • North Columbus Gneiss Complex
  • Modifications:
    • First used
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Hanley, T.B., 1987, The geology of the Uchee belt, Columbus, Georgia, and vicinity, IN Frazier, W.J., and Hanley, T.B., eds., Geology of the Fall Line; a field guide to structure and petrology of the Uchee belt and facies stratigraphy of the Eutaw Formation in southwestern Georgia and adjacent Alabama: Georgia Geological Society Guidebook, 22nd Annual Field Trip, October 9-11, 1987, v. 7, no. 1, p. A1-A14., Roadlog, p. 1-25


Summary:

Uchee Complex not used in this report. New and revised nomenclature proposes to replace Uchee with North Columbus Gneiss Complex, Bypass Metamorphic Complex [both first used], and Phenix City Gneiss. North Columbus is subdivided into Standing Boy Quartz Diorite, Smith's Road Exit Gneiss [first used], and Double Churches Gneiss [first used]. North Columbus may also include Mulberry Gneiss [first used], north of Goat Rock fault, but relationship to other units is uncertain. Age not stated by assumed by reviewer to be Late Proterozoic and early Paleozoic.

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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