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Mineral Resources > Online Spatial Data > Geology > by state > South Carolina Geology

Geologic units in Fairfield county, South Carolina

Mafic to intermediate metavolcanics including layered hornblende gneiss and amphibolite (Ordovician to Neoproterozoic) at surface, covers 2 % of this area

Mafic to intermediate metavolcanics including layered hornblende gneiss and amphibolite

Lithology: mafic metavolcanic rock; gneiss; amphibolite

Metamorphosed granite and granodiorite (Cambrian or Neoproterozoic) at surface, covers 37 % of this area

Metamorphosed granite and granodiorite

Lithology: granite; granodiorite

Felsic metavolcanic rocks and felsic gneiss interpreted to the metavolcanics (Ordovician to Neoproterozoic) at surface, covers 3 % of this area

Felsic metavolcanic rocks and felsic gneiss interpreted to the metavolcanics

Lithology: felsic metavolcanic rock; gneiss

Diorite-gabbro- Dutchman's Creek pluton (Carboniferous) at surface, covers 2 % of this area

Diorite-gabbro- Dutchman's Creek pluton

Lithology: gabbro

Great Falls metagranite (Cambrian or Neoproterozoic) at surface, covers 2 % of this area

Great Falls metagranite: foliated, metamorphosed muscovite-biotite granite having accessory garnet and discordantly intruding surrounding rocks

Lithology: granite

Amphibolite and amphibolite gneiss (Paleozoic to Neoproterozoic) at surface, covers 2 % of this area

Amphibolite and amphibolite gneiss

Lithology: amphibolite; gneiss

Richtex Formation (Ordovician to Middle Cambrian) at surface, covers 5 % of this area

Richtex Formation: laminated metamudstone; contains Middle Cambrian or younger sponge spicules

Lithology: metasedimentary rock

Biotite quartz-plagioclase gneiss (Paleozoic or Neoproterozoic) at surface, covers 4 % of this area

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

Lithology: biotite gneiss; amphibolite; schist

Granite- Liberty Hill pluton (Carboniferous to Permian) at surface, covers 1 % of this area

Granite- Liberty Hill pluton

Lithology: granite

Metamorphosed granitoid rocks, undivided (Paleozoic to Neoproterozoic) at surface, covers 0.5 % of this area

Metamorphosed granitoid rocks, undivided

Lithology: granitoid

Persimmon Fork Formation (Cambrian to Neoproterozoic) at surface, covers 9 % of this area

Persimmon Fork Formation: predominately metatuff

Lithology: metavolcanic rock

Little Mountain metatonalite (Neoproterozoic) at surface, covers 1 % of this area

Little Mountain metatonalite

Lithology: tonalite

Granite (Carboniferous to Permian) at surface, covers 0.2 % of this area

Granite

Lithology: granite

Cape Fear/Eutaw Formations (Cretaceous) at surface, covers 0.2 % of this area

Cape Fear/Eutaw Formations Kcfe: Poorly sorted clayey sand and gravel deposited in delta-dominated fluvial- and restricted marine environments. Unit is characterized by an abundance of smoky quartz gravel, feldspar, monazite, and garnet typically concentrated in placer deposits. Generally non-marine from North Carolina to central Georgia but contains shallow-water delta-front deposits in western Georgia.

Lithology: sand; gravel

Longtown Metagranite (Neoproterozoic) at surface, covers 3 % of this area

Longtown Metagranite: biotite metagranite

Lithology: granite

Granite- Winnsboro pluton (Carboniferous to Permian) at surface, covers 13 % of this area

Granite- Winnsboro pluton

Lithology: granite

Newberry granite (Silurian) at surface, covers 4 % of this area

Newberry granite

Lithology: granite

Metagabbro- Big Wateree Creek (Middle Paleozoic to Neoproterozoic) at surface, covers 2 % of this area

Metagabbro- Big Wateree Creek: metagabbro and minor metadiorite

Lithology: gabbro

Mylonite gneiss (Late Paleozoic) at surface, covers 10 % of this area

Mylonite gneiss

Lithology: mylonite