- Usage in publication:
-
- Gothards Creek Gneiss*
- Modifications:
-
- Named
- Dominant lithology:
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- Gneiss
- AAPG geologic province:
-
- Piedmont-Blue Ridge province
Summary:
Named for Gothards Creek, Douglas Co., northwestern GA. Consists of highly sheared and schistose, light-gray, biotite granitic gneiss. Thickness is undetermined because it is completely bounded by faults of Oak Mountain fault zone on northern side of northeastern end of Austell-Frolona anticlinorium. Outcrop width at type section is about 1.7 km (about 1 mi), but ranges from less than 100 m to over 4 km elsewhere in fault slices in Atlanta 1:100,000 quad. Age is Middle Proterozoic(?) to Early Silurian(?); oldest basement in region is possibly Middle Proterozoic and Gothards Creek Gneiss is intruded by Early Silurian Austell Gneiss. Report includes geologic map and correlation chart.
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 ([ ]).