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Map showing publication footprint
  • Usage in publication:
    • Mulberry Rock Gneiss
  • Modifications:
    • Named
  • Dominant lithology:
    • Gneiss
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

McConnell, K.I., and Abrams, C.E., 1984, Geology of the greater Atlanta region: Georgia Geologic Survey Bulletin, no. 96, 127 p.


Summary:

The Mulberry Rock Gneiss, here named, is a pre- to synmetamorphic intrusive body at the Allatoona fault, the boundary between the Piedmont and Blue Ridge in the Greater Atlanta Region, GA. It consists of equigranular muscovite-quartz-microcline-plagioclase orthogneiss. Age is Paleozoic.

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


Map showing publication footprint
  • Usage in publication:
    • Mulberry Rock Gneiss*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Higgins, M.W., Atkins, R.L., Crawford, T.J., Crawford, R.F., III, Brooks, Rebekah, and Cook, R.B., Jr., 1988, The structure, stratigraphy, tectonostratigraphy, and evolution of the southernmost part of the Appalachian Orogen, Georgia and Alabama: U.S. Geological Survey Professional Paper, 1475, 173 p., (incl. geologic map, scale 1:500,000)


Summary:

The Mulberry Rock Gneiss of the New Georgia Group of McConnell and Abrams (1984), is here USGS accepted as the Mulberry Rock Gneiss. It is a trondhjemite body in the Ropes Creek thrust sheet in northwestern GA. Age is mostly Cambrian.

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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