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

Furcron, A.S., Teague, K.H., and Calver, J.L., 1946, Talc deposits of Murray County, Georgia [abs]: Geological Society of America Bulletin, Chicago, December 26-28, 1946, v. 57, no. 12, pt. 2, p. 1195.


Summary:

Thrust faults supplementary to the mapped overthrust, which separates the eastern crystalline block from known Paleozoic sediments of the Great Valley, bring up a Precambrian biotite augen gneiss, Fort Mountain gneiss, intruded by granite upon which Ocoee rocks are unconformable. Talc deposits and associated schists, Cohutta schist, occur in upthrust block of Fort Mountain gneiss but not in Ocoee series.

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


Map showing publication footprint
  • Usage in publication:
    • Cohutta schist
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Furcron, A.S., Teague, K.H., and Calver, J.L., 1947, Talc deposits of Murray County, Georgia: Georgia Geologic Survey Bulletin, no. 53, 75 p.


Summary:

Cohutta schist, named for Cohutta Mountain, one of the southernmost conspicuous elevations of the Great Smoky Mountain. Believed to be the oldest formation in the area. Represents remnants of a metasedimentary formation, which is included in Fort Mountain gneiss. Intruded by Corbin granite. Age is Precambrian.

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


Map showing publication footprint
  • Usage in publication:
    • Cohutta Schist†
  • Modifications:
    • Abandoned
  • 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 Cohutta Schist of Furcron and Teague (1947), small altered ultramafic bodies associated with the Allatoona Complex around Fort Mountain, is here abandoned, following McConnell and Costello (1984).

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


Map showing publication footprint
  • Usage in publication:
    • "Cohutta Schist"
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Greene, R.C., 1995, Talc resources of the conterminous United States: U.S. Geological Survey Open-File Report, OF-95-586, 178 p., (incl. geologic map, scale 1:5,000,000)


Summary:

Used as "Cohutta Schist" because name was previously abandoned.

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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