- Usage in publication:
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- Palmer Creek Member
- Modifications:
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- Named
- Dominant lithology:
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- Schist
- AAPG geologic province:
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- Piedmont-Blue Ridge province
Summary:
The Palmer Creek Member of the Canton Formation, here named in the Dahlonega area, GA, was previously mapped as the Carolina gneiss by Keith (1909). It consists of biotite-quartz schist with hornblende or garnet. The boundary between the Palmer Creek and the underlying Proctor Creek is gradational at the lowest occurrence of biotite-quartz schist. It is in fault contact with the overlying Chestatee Member of the Canton at the first occurrence of interlayered felsic gneiss and amphibolite. Where the Chestatee Member is absent the Palmer Creek grades into the Helen Member of the Canton at the first appearance of biotite-plagioclase-quartz gneiss. Age is Late Proterozoic and (or) 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 ([ ]).