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Geologic units in Clarke county, Georgia

Biotite Gneiss/ Feldspathic Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 65 % of this area

Biotite Gneiss/ Feldspathic Biotite Gneiss

Biotitic Gneiss / Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 20 % of this area

Biotitic Gneiss / Mica Schist/ Amphibolite

Sillimanite Schist/ Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 9 % of this area

Sillimanite Schist/ Gneiss/ Amphibolite

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

Sillimanite Schist/ Gneiss

Sillimanite Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 2 % of this area

Sillimanite Schist/ Amphibolite

Sillimanite Schist (Precambrian-Paleozoic) at surface, covers 0.8 % of this area

Sillimanite Schist

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

Mica Schist