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Geologic units in Oglethorpe county, Georgia

Granite/ gneissic biotite granite (Precambrian-Paleozoic) at surface, covers 47 % of this area

Granite/ gneissic biotite granite

Undifferentiated Metavolcanics/ Sericite phyllite/ Meta-argillite/ Quartz mica schist (Precambrian-Paleozoic) at surface, covers 16 % of this area

Undifferentiated Metavolcanics/ Sericite phyllite/ Meta-argillite/ Quartz mica schist

Biotite Gneiss/ Feldspathic Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 8 % of this area

Biotite Gneiss/ Feldspathic Biotite Gneiss

Sillimanite Schist/ Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 7 % of this area

Sillimanite Schist/ Gneiss/ Amphibolite

Biotitic Gneiss / Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 7 % of this area

Biotitic Gneiss / Mica Schist/ Amphibolite

Sillimanite Schist/ Gneiss (Precambrian-Paleozoic) at surface, covers 3 % of this area

Sillimanite Schist/ Gneiss

Granite/ biotite granite/ amphibolite (Precambrian-Paleozoic) at surface, covers 2 % of this area

Granite/ biotite granite/ amphibolite

Amphibolite/ Biotitic Gneiss/ Quartz Sericite Schist (Precambrian-Paleozoic) at surface, covers 2 % of this area

Amphibolite/ Biotitic Gneiss/ Quartz Sericite Schist

Granite undifferentiated (Precambrian-Paleozoic) at surface, covers 2 % of this area

Granite undifferentiated

Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 2 % of this area

Granitic Gneiss undifferentiated

Metadacite (Precambrian-Paleozoic) at surface, covers 1 % of this area

Metadacite

Granite Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 1 % of this area

Granite Gneiss/ Amphibolite

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss (Precambrian-Paleozoic) at surface, covers 0.7 % of this area

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss

Amphibolite/ Epidote Quartzite/ Granite Gneiss (Precambrian-Paleozoic) at surface, covers 0.4 % of this area

Amphibolite/ Epidote Quartzite/ Granite Gneiss

Sillimanite Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 0.1 % of this area

Sillimanite Schist/ Amphibolite

Gabbro (Precambrian-Paleozoic) at surface, covers 0.1 % of this area

Gabbro

Quartzite/ Mica Schist (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Quartzite/ Mica Schist