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Diorite

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Includes unmetamorphosed, undeformed biotite-hornblende diorite
State South Carolina
Name Diorite
Geologic age Age uncertain
Lithologic constituents
Major
Igneous > Plutonic > Dioritic > Dioritebiotite-hornblende diorite
Comments Plutons of Undetermined Affinity and Age
References

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.

https://pubs.er.usgs.gov/publication/ofr01298
Counties Greenwood - Union