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  • Usage in publication:
    • Glenloch Formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
  • 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:

Named Glenloch Formation of the Heard Group for community of Glenloch, Heard Co., GA. Consists of interlayered muscovite-garnet-quartz-feldspathic schist and muscovite-graphite-garnet-quartz schist. Weathers to light-orange soil and produces gravel of pea sized garnets. The Glenloch is the middle unit of the Heard Group; it adjoins the Roopville Formation to the north and gradationally adjoins the Centralhatchee Formation to the south. Age is believed to be Precambrian 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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