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National Geologic Map Database
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  • Usage in publication:
    • Mountain Creek Formation*
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
    • Graywacke
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Higgins, M.W., Atkins, R.L., Crawford, T.J., Crawford, R.F., III, Brooks, Rebekah, and Cook, R.B., Jr., 1988, The structure, stratigraphy, tectonostratigraphy, and evolution of the southernmost part of the Appalachian Orogen, Georgia and Alabama: U.S. Geological Survey Professional Paper, 1475, 173 p., (incl. geologic map, scale 1:500,000)


Summary:

The Mountain Creek Formation of the Pine Mountain Group is here named for exposures of interbedded pelitic schist and graywacke in the valley of Mountain Creek, Harris Co., GA., in the Pine Mountain anticlinorium in the Bill Arp thrust sheet. It comprises the upper unit of the Manchester Schist as originally defined by Crickmay (1935), and is lithologically identical to the Bill Arp Formation in the Great Smoky Group. It overlies the Manchester Schist and underlies the Chewacla Marble of the Pine Mountain Group. Age is Late Proterozoic.

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


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 ([ ]).