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Mineral Resources > Online Spatial Data > Geology > by state > Georgia Geology

Geologic units in Oglethorpe county, Georgia

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

Granite undifferentiated

Lithology: granite

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

Granite/ gneissic biotite granite

Lithology: granite

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

Sillimanite Schist/ Amphibolite

Lithology: schist; amphibolite

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

Sillimanite Schist/ Gneiss

Lithology: schist; gneiss

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

Lithology: granitic gneiss; biotite gneiss; amphibolite

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

Metadacite

Lithology: metavolcanic rock

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

Gabbro

Lithology: gabbro

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

Sillimanite Schist/ Gneiss/ Amphibolite

Lithology: schist; gneiss; amphibolite

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

Amphibolite/ Epidote Quartzite/ Granite Gneiss

Lithology: amphibolite; quartzite; granitic gneiss

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

Quartzite/ Mica Schist

Lithology: quartzite; mica schist

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

Granitic Gneiss undifferentiated

Lithology: granitic gneiss

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

Lithology: metavolcanic rock; phyllite; schist

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

Amphibolite/ Biotitic Gneiss/ Quartz Sericite Schist

Lithology: amphibolite; biotite gneiss; schist

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

Biotite Gneiss/ Feldspathic Biotite Gneiss

Lithology: biotite gneiss; felsic gneiss

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

Granite/ biotite granite/ amphibolite

Lithology: granite; amphibolite

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

Granite Gneiss/ Amphibolite

Lithology: granitic gneiss; amphibolite

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

Biotitic Gneiss / Mica Schist/ Amphibolite

Lithology: biotite gneiss; mica schist; amphibolite