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

Bentley, R.D. (editor), and Neathery, T.L. (editor), 1970, Geology of the Brevard fault zone and related rocks of the Inner Piedmont of Alabama: Alabama Geological Society Annual Field Trip Guidebook, December 4-5, 1970, no. 8, 119 p.


Summary:

Uchee Complex (of Bentley, in press) can be subdivided into at least four units: Mulberry Gneiss, Phenix City Gneiss, Standing Boy Quartz Diorite, and Hudson Rapids Ultramafic Amphibolite. Of the four subdivisions, only the Phenix City Gneiss is discussed in this report.

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


Map showing publication footprint
  • Usage in publication:
    • Mulberry Gneiss
  • Modifications:
    • Revised
  • 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:

Name Mulberry Gneiss credited to Bentley and others (in press). Author states that unit should perhaps be included in North Columbus Gneiss Complex [first used] along with Double Churches Gneiss, Smith's Road Exit Gneiss [both first used], and Standing Boy Quartz Diorite. However, unit is north of Goat Rock fault, west-central GA, and the relationship to those gneisses south of fault is uncertain. Age not stated but is assumed by reviewer to be Late Proterozoic and early Paleozoic.

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


  • Usage in publication:
    • Mulberry gneiss
Publication:

GNU Staff, 1993, GNU Staff remark on selected Precambrian units of Georgia and Alabama: U.S. Geological Survey Digital Data Series, DDS-6, 1 CD-ROM., release 3


Summary:

This name has never been formally proposed. Since 1970, it has been credited in all reports to Bentley (in press), The geology of Lee County, Alabama. Unfortunately, the Lee County report was never published. Supposedly there is a 1971 Alabama Geological Survey open-file report by Bentley, Neathery, and Scott that deals with the geology and mineral resources of Lee County. This report, however, is unavailable for review.

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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