Geologic units in Abbeville county, South Carolina

Geologic units in Abbeville county, South Carolina

Additional scientific data in this geographic area

Biotite quartz-plagioclase gneiss (Paleozoic or Neoproterozoic) at surface, covers 26 % of this area

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

Metamorphosed granitoid rocks, undivided (Paleozoic to Neoproterozoic) at surface, covers 21 % of this area

Metamorphosed granitoid rocks, undivided

Gneissic granite of Antreville pluton (Silurian to Ordovician) at surface, covers 17 % of this area

Gneissic biotite granite to granodiorite

Gneiss of Laurens area (Cambrian or Neoproterozoic) at surface, covers 11 % of this area

Biotite-quartz-plagioclase gneiss and interlayers locally containing hornblende, sillimanite, microcline, and muscovite

Little River Sequence, metasedimentary rocks (Cambrian or Neoproterozoic) at surface, covers 6 % of this area

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

Reedy River complex (Paleozoic) at surface, covers 5 % of this area

Gneissic biotite granite to granodiorite

Biotite-plagioclase-quartz gneiss and biotite-muscovite schist (Cambrian or Neoproterozoic) at surface, covers 3 % of this area

Variably interlayered, containing subordinate layers of amphibolite and sillimanite-mica schist

Mylonite gneiss (Late Paleozoic) at surface, covers 2 % of this area

Mylonite gneiss

Gabbro - Calhoun Falls pluton (Devonian to Silurian) at surface, covers 2 % of this area

Gabbro - Calhoun Falls pluton

Sillimanite schist and sillimanite-mica schist (Cambrian or Neoproterozoic) at surface, covers 2 % of this area

Sillimanite-rich aluminous schist composed mainly of sillimanite, biotite, muscovite, and minor quartz

Phyllonite and phyllonitic schist (Late Paleozoic) at surface, covers 2 % of this area

Phyllonite and phyllonitic schist

Latimer complex of Griffin (1979) (Paleozoic or Neoproterozoic) at surface, covers 0.9 % of this area

Metamorphosed mafic-ultramafic complex consisting mainly of mafic rocks including amphibolite, metagabbro, and greenstone metabasalt

Gabbro - Abbeville pluton (Devonian to Silurian) at surface, covers 0.4 % of this area

Gabbro - Abbeville pluton

Gneissic granite of Starr (Silurian to Ordovician) at surface, covers 0.4 % of this area

Gneissic biotite granite to granodiorite of Starr pluton and nearby satellite plutons

Persimmon Fork Formation (Cambrian to Neoproterozoic) at surface, covers 0.3 % of this area

Predominately metatuff

Gabbro of Concord Plutonic Suite (Devonian to Silurian) at surface, covers 0.2 % of this area

Gabbro of Concord Plutonic Suite

Amphibolite and amphibolite gneiss (Paleozoic to Neoproterozoic) at surface, covers < 0.1 % of this area

Amphibolite and amphibolite gneiss

Gabbro - Mt. Carmel pluton (Devonian to Silurian) at surface, covers < 0.1 % of this area

Gabbro - Mt. Carmel pluton

Gneissic granite of Greenville (Paleozoic) at surface, covers < 0.1 % of this area

Granite gneiss

Amphibolite/ Biotitic Gneiss/ Quartz Sericite Schist (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Amphibolite/ Biotitic Gneiss/ Quartz Sericite Schist