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Geologic units in Morgan county, Georgia

Biotite Gneiss/ Feldspathic Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 31 % of this area

Biotite Gneiss/ Feldspathic Biotite Gneiss

Granite Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 29 % of this area

Granite Gneiss/ Amphibolite

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss (Precambrian-Paleozoic) at surface, covers 10 % of this area

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss

Biotitic Gneiss / Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 8 % of this area

Biotitic Gneiss / Mica Schist/ Amphibolite

Biotitic Gneiss Undifferentiated (Precambrian-Paleozoic) at surface, covers 8 % of this area

Biotitic Gneiss Undifferentiated

Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 5 % of this area

Granitic Gneiss undifferentiated

Amphibolite/ Mica Schist/ Biotitic Gneiss (Precambrian-Paleozoic) at surface, covers 4 % of this area

Amphibolite/ Mica Schist/ Biotitic Gneiss

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

Biotitic Gneiss / Amphibolite

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

Sillimanite Schist/ Gneiss/ Amphibolite

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

Hornblende Gneiss/ Amphibolite/ Granite Gneiss

Sillimanite Schist (Precambrian-Paleozoic) at surface, covers 0.3 % of this area

Sillimanite Schist

Ultramafic rocks undifferentiated (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Ultramafic rocks undifferentiated