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Geologic units in Newton county, Georgia

Biotitic Gneiss / Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers 46 % of this area

Biotitic Gneiss / Mica Schist/ Amphibolite

Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 36 % of this area

Granitic Gneiss undifferentiated

Biotite Gneiss/ Feldspathic Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 13 % of this area

Biotite Gneiss/ Feldspathic Biotite Gneiss

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

Amphibolite/ Mica Schist/ Biotitic Gneiss

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

Sillimanite Schist

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

Quartzite

Granite undifferentiated (Precambrian-Paleozoic) at surface, covers 0.4 % of this area

Granite undifferentiated

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss (Precambrian-Paleozoic) at surface, covers 0.1 % of this area

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss

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

Sillimanite Schist/ Gneiss

Flinty Crush Rock (Age uncertain) at surface, covers < 0.1 % of this area

Flinty Crush Rock