Geologic units in Butts county, Georgia

Biotitic Gneiss / Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 47 % of this area: Biotitic Gneiss / Mica Schist/ Amphibolite
Lithology: biotite gneiss; mica schist; amphibolite
Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 9 % of this area: Granitic Gneiss undifferentiated
Lithology: granitic gneiss
Mica Schist/ Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 16 % of this area: Mica Schist/ Gneiss/ Amphibolite
Lithology: mica schist; gneiss; amphibolite
Sillimanite Schist (Precambrian-Paleozoic) at surface, covers 1 % of this area: Sillimanite Schist
Lithology: schist
Biotite Gneiss/ Feldspathic Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 24 % of this area: Biotite Gneiss/ Feldspathic Biotite Gneiss
Lithology: biotite gneiss; felsic gneiss
Hornblende Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 0.1 % of this area: Hornblende Gneiss/ Amphibolite
Lithology: gneiss; amphibolite
Granite undifferentiated (Precambrian-Paleozoic) at surface, covers 0.9 % of this area: Granite undifferentiated
Lithology: granite