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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Tar Creek Member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Higgins, M.W., and Atkins, R.L., 1981, The stratigraphy of the Piedmont southeast of the Brevard zone in the Atlanta, Georgia, area, IN Wigley, P.B., ed., Latest thinking on the stratigraphy of selected areas in Georgia; Volume 1: Georgia Geologic Survey Information Circular, no. 54-A, p. 3-40.


Summary:

The Tar Creek Member is here named the upper member of the Clarkston Formation of the Atlanta group in the area from East Point to Palmetto, GA, in the northwest limb of the Newnan-Tucker synform. It consists of purple-pink weathering muscovite schist and ocher-weathering amphibolite, like the Clarkston, undivided. Overlies the Fairburn Member of the Clarkston; underlies the Camp Creek Formation with sharp and conformable contact. Intruded by the Union City Complex and Palmetto Granite. Thickness is 400 to 1,500 m. Age is Late Proterozoic and (or) early Paleozoic.

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


Map showing publication footprint
  • Usage in publication:
    • Tar Creek Member†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Piedmont-Blue Ridge province

For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).