Geologic units in McCormick county, South Carolina

Geologic units in McCormick county, South Carolina

Persimmon Fork Formation (Cambrian to Neoproterozoic) at surface, covers 39 % of this area

Predominately metatuff

Little River Sequence, metasedimentary rocks (Cambrian or Neoproterozoic) at surface, covers 29 % of this area

White-mica schist and phyllite, metatuff, quartz-muscovite schist, and minor quartzite

Richtex Formation (Ordovician to Middle Cambrian) at surface, covers 9 % of this area

Laminated metamudstone; contains Middle Cambrian or younger sponge spicules

Metamorphosed granitoid rocks, undivided (Paleozoic to Neoproterozoic) at surface, covers 7 % of this area

Metamorphosed granitoid rocks, undivided

Migmatite paragneiss and schist of Kiokee belt (Cambrian or Neoproterozoic) at surface, covers 6 % of this area

Migmatitic hornblende-biotite paragneiss having interlayered sillimanite schist and amphibolite

Lincolnton Metadacite (Neoproterozoic) at surface, covers 2 % of this area

Lincolnton Metadacite

Gabbro - Mt. Carmel pluton (Devonian to Silurian) at surface, covers 2 % of this area

Gabbro - Mt. Carmel pluton

Mylonitic rocks of Modoc Fault Zone (Late Paleozoic) at surface, covers 2 % of this area

Mylonite gneiss

Biotite quartz-plagioclase gneiss (Paleozoic or Neoproterozoic) at surface, covers 1 % of this area

Biotite quartz-plagioclase gneiss with minor interlayers of amphibolite gneiss and mica schist

Granite (Carboniferous to Permian) at surface, covers 1 % of this area

Granite

Gabbro - McCormick pluton (Devonian to Silurian) at surface, covers 0.9 % of this area

Gabbro - McCormick pluton

Gabbro - Calhoun Falls pluton (Devonian to Silurian) at surface, covers 0.3 % of this area

Gabbro - Calhoun Falls pluton

Syenite - Mount Carmel pluton (Devonian to Silurian) at surface, covers 0.3 % of this area

Syenite - Mount Carmel pluton

Granite - Cuffytown Creek pluton (Carboniferous to Permian) at surface, covers 0.2 % of this area

Granite - Cuffytown Creek pluton

Metagabbro and minor metadiorite (Middle Paleozoic to Neoproterozoic) at surface, covers 0.2 % of this area

Metagabbro and minor metadiorite

Burkes Mountain complex, amphibolite (Cambrian and/or Neoproterozoic) at surface, covers < 0.1 % of this area

Burkes Mountain complex, amphibolite

Burkes Mountain complex, ultramafic rock (Cambrian or Neoproterozoic) at surface, covers < 0.1 % of this area

Burkes Mountain complex, ultramafic rock