Geologic units in Monroe county, Georgia

Mica Schist/ Gneiss/ Amphibolite (Precambrian-Paleozoic) at surface, covers 50 % of this area

Mica Schist/ Gneiss/ Amphibolite

Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 22 % of this area

Biotite gneiss

Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 10 % of this area

Granitic Gneiss undifferentiated

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

Hornblende Gneiss/ Amphibolite

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

Granite Gneiss/ Amphibolite

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

Hornblende Gneiss

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

Biotite Gneiss/ Feldspathic Biotite Gneiss

Biotite Gneiss/ Mica Schist (Age uncertain) at surface, covers 0.6 % of this area

Biotite Gneiss/ Mica Schist

Hornblende Gneiss/ Amphibolite/ Granite Gneiss (Precambrian-Paleozoic) at surface, covers 0.5 % of this area

Hornblende Gneiss/ Amphibolite/ Granite Gneiss

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss (Precambrian-Paleozoic) at surface, covers 0.4 % of this area

Biotite Granite Gneiss/ Feldspathic Biotite Gneiss/ Amphibolite Hornblende Gneiss

Mylonite and ultramylonite (Age uncertain) at surface, covers 0.3 % of this area

Mylonite and ultramylonite

Mafic Hornfels (Precambrian-Paleozoic) at surface, covers 0.3 % of this area

Mafic Hornfels

Amphibolite (Precambrian-Paleozoic) at surface, covers 0.2 % of this area

Amphibolite

Gabbro (Precambrian-Paleozoic) at surface, covers 0.2 % of this area

Gabbro