Geologic units in Cobb county, Georgia

Additional scientific data in this geographic area

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

Biotitic Gneiss / Mica Schist/ Amphibolite

Amphibolite/ Mica Schist/ Biotitic Gneiss (Precambrian-Paleozoic) at surface, covers 21 % of this area

Amphibolite/ Mica Schist/ Biotitic Gneiss

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

Hornblende Gneiss/ Amphibolite

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

Mica Schist/ Gneiss/ Amphibolite

Biotite Gneiss/ Amphibolite (Age uncertain) at surface, covers 8 % of this area

Biotite Gneiss/ Amphibolite

Granitic Gneiss / Gneissic Granite (augen or porphyritic) (Precambrian-Paleozoic) at surface, covers 4 % of this area

Granitic Gneiss / Gneissic Granite (augen or porphyritic)

Biotite Gneiss (Precambrian-Paleozoic) at surface, covers 4 % of this area

Biotite gneiss

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

Garnet Mica Schist/ Gneiss

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

Mica Schist

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

Quartzite

Button Mica Schist (Precambrian-Paleozoic) at surface, covers 0.7 % of this area

Button Mica Schist

Amphibolite (Precambrian-Paleozoic) at surface, covers 0.6 % of this area

Amphibolite

Garnet Mica Schist (Precambrian-Paleozoic) at surface, covers 0.6 % of this area

Garnet Mica Schist

Quartzite/ Mica Schist (Precambrian-Paleozoic) at surface, covers 0.6 % of this area

Quartzite/ Mica Schist

Granitic Gneiss undifferentiated (Precambrian-Paleozoic) at surface, covers 0.5 % of this area

Granitic Gneiss undifferentiated

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

Hornblende Gneiss

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

Amphibolitic Schist

Ultramafic rocks undifferentiated (Precambrian-Paleozoic) at surface, covers 0.2 % of this area

Ultramafic rocks undifferentiated

Garnet Mica Schist/ Amphibolite (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Garnet Mica Schist/ Amphibolite

Porphyritic granite (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Porphyritic granite

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

Aluminous Schist

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

Phyllite undifferentiated

Quartzite/ Metagraywacke (Precambrian-Paleozoic) at surface, covers < 0.1 % of this area

Quartzite/ Metagraywacke