USGS Visual Identifier

National Geologic Map Database logo
GEOLEX database

Geologic Unit: Coleman River

Publication:
Hatcher, R.D., Jr., 1979, The Coweeta Group and Coweeta syncline; 
   major features of the North Carolina-Georgia Blue Ridge: 
   Southeastern Geology, v. 21, no. 1, p. 21-23.
Usage in Publication:
Coleman River Formation

Modifications: Geologic Province: Dominant Lithology:
 Named
 Piedmont-Blue Ridge province
 Gneiss
 Schist
 Sandstone

Summary:
Named for Coleman River, Dillard quad, Rabun Co., north-central GA. Consists of metasandstone, meta-arkose, and quartz-feldspar gneiss with interlayers of pelitic schist. Metasandstone is medium grained, foliated, thinly laminated or "pinstriped." Overlies Persimmon Creek Formation; underlies Ridgepole Mountain Formation. [Age is late Precambrian(?), Late Proterozoic(?).]
Source: GNU records (USGS DDS-6; Reston GNULEX).


Publication:
Peper, J.D., Lesure, F.G., Cox, L.J., and D'Agostino, J.P., 
   1991, Geology, geochemistry, and mineral resource assessment 
   of the Southern Nantahala Wilderness and adjacent roadless 
   areas, Rabun and Towns Counties, Georgia, and Clay and Macon 
   Counties, North Carolina: U.S. Geological Survey Bulletin, 
   1883, 30 p.
Usage in Publication:
Coleman River Formation

Modifications: Geologic Province: Dominant Lithology:
 Revised
 Age modified
 Piedmont-Blue Ridge province
 

Summary:
Coweeta Group and its Persimmon Creek Gneiss, Coleman River Formation, and Ridgepole Mountain Formation are used informally in this report (local usage of Hatcher, 1979). Age changed from Late Proterozoic to Late Proterozoic and early Paleozoic. All formations are found in Richard Russell thrust sheet, east of Shope Fork fault.
Source: GNU records (USGS DDS-6; Reston GNULEX).


Publication:
Nelson, A.E., Horton, J.W., Jr., and Clark, J.W., 1998, Geologic 
   map of the Greenville 1 degrees x 2 degrees quadrangle, 
   Georgia, South Carolina, and North Carolina: U.S. Geological 
   Survey Miscellaneous Investigations Series Map, I-2175, 12 
   p., scale 1:250,000
Usage in Publication:
Coleman River Formation*

Modifications: Geologic Province: Dominant Lithology:
 Overview
 Piedmont-Blue Ridge province
 

Summary:
Rocks mapped as quartzofeldspathic gneiss member of Richard Russell Formation probably correlate with Coleman River Formation of Hatcher (1979) in NC.
Source: GNU records (USGS DDS-6; Reston GNULEX).