|Name||Chauga River Formation and Poor Mountain Formation, undivided|
|Geologic age||Cambrian or Neoproterozoic|
Metamorphic > Metasedimentary
|Comments||Western Piedmont, layered and stratified rocks Secondary unit descriptions from USGS Geologic Names lexicon: [Chauga River Formation] consists of fine-grained, dark, shimmering quartz schist, mica schists, graphite slates, limestones, and other rock types. [Poor Mountain] A narrow belt of Carolina gneiss series underlies Poor Mountain series, which comprises dark calcareous slates, marble, thin hornblende schists, ottrelite(?) schists, sandstones, and itacolumite. The white dolomitic marble of this zone grades to a dark-green pyroxenic mass, in places altered to hornblende.|
Horton, J.Wright, and Dicken, Connie L., 2001, Preliminary Geologic Map of the Appalachian Piedmont and Blue Ridge, South Carolina Segment: U.S. Geological Survey, Open-File Report 01-298, CD, scale 1:500,000.
USGS Geologic Names lexicon found at: http://ngmdb.usgs.gov/Geolex/
|Counties||Greenville - Oconee - Pickens|