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

Neathery, T.L., 1975, Rock units in the High-Rank belt of the northern Alabama Piedmont, IN Neathery, T.L., and Tull, J.F., eds., Geologic profiles of the northern Alabama Piedmont: Alabama Geological Society Annual Field Trip Guidebook, December, 1975, no. 13, p. 9-47.


Summary:

Name Pinchoulee Gneiss of Hatchet Creek Group applied to feldspathic and migmatitic biotite gneiss exposed along shores of Lake Jordan, Chilton Co., east-central AL. Unit forms narrow lithologic belt between Wedowee Group and Elkahatchee Quartz Diorite. Age is early and middle Paleozoic.

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


Map showing publication footprint
  • Usage in publication:
    • Pinchoulee Gneiss
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Raymond, D.E., Osborne, W.E., Copeland, C.W., and Neathery, T.L., 1988, Alabama stratigraphy: Geological Survey of Alabama Circular, no. 140, 97 p.


Summary:

Pinchoulee Gneiss of the Hatchet Creek Group occurs in the northern Piedmont of east-central AL. Unit is a fine- to medium-grained feldspathic biotite gneiss, locally garnetiferous and commonly saturated with leucocratic granitoid dikes, sills, and plutons. Contains occasional zones of graphite-sericite-feldspar schist, hornblende quartzite, garnet quartzite, and thin amphibolite. Migmatitic along southeastern margin and along Coosa river. Overlies Hanover Schist, also of Hatchet Creek Group.

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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