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Mineral Resources > Online Spatial Data > Geology > by state > Virginia Geology

Geologic units in Fluvanna county, Virginia

Metagraywacke, Quartzose Schist, and Melange (Proterozoic Z-Cambrian) at surface, covers 45 % of this area

Metagraywacke, Quartzose Schist, and Melange - Meta-argillite is metagraywacke; quartzose schist

Lithology: meta-argillite; schist; melange

Arvonia Formation - Bremo quartzite. Quartzite (Ordovician) at surface, covers 0.2 % of this area

Arvonia Formation - Bremo quartzite. Quartzite

Lithology: quartzite

Ta River Metamorphic Suite (Cambrian) at surface, covers 0.3 % of this area

Ta River Metamorphic Suite - Amphibolite gneiss

Lithology: amphibolite; gneiss; schist; quartzite; biotite gneiss; felsic volcanic rock; gabbro; granite

Interlayered Mafic and Felsic Metavolcanic Rocks - Quartzofeldspathic biotite gneiss (Cambrian) at surface, covers 0.9 % of this area

Interlayered Mafic and Felsic Metavolcanic Rocks - Quartzofeldspathic biotite gneiss

Lithology: biotite gneiss; schist; intermediate volcanic rock

Columbia pluton (Ordovician) at surface, covers 0.7 % of this area

Columbia pluton - Granite

Lithology: granite

Interlayered Mafic and Felsic Metavolcanic Rocks - Amphibolite, hornblende-biotite gneiss, and schist. (Cambrian) at surface, covers < 0.1 % of this area

Interlayered Mafic and Felsic Metavolcanic Rocks - Amphibolite, hornblende-biotite gneiss, and schist.

Lithology: amphibolite; biotite gneiss; schist

Ellisville Biotite Granodiorite (Ordovician-Silurian) at surface, covers 0.7 % of this area

Ellisville Biotite Granodiorite - Biotite granodiorite

Lithology: granodiorite

Quantico Formation - Slate and porphyroblastic schist (Ordovician) at surface, covers 0.8 % of this area

Quantico Formation - Slate and porphyroblastic schist

Lithology: slate; schist

Carysbrook Pluton (Proterozoic) at surface, covers 12 % of this area

Carysbrook pluton - Granite.

Lithology: granite

Arvonia Formation - Slate and porphyroblastic schist (Ordovician) at surface, covers 4 % of this area

Arvonia Formation - Slate and porphyroblastic schist

Lithology: slate; schist

Chopawamsic Formation - Mafic to intermediate metavolcanic rocks (Cambrian) at surface, covers 3 % of this area

Chopawamsic Formation - Mafic to intermediate metavolcanic rocks

Lithology: mafic metavolcanic rock; intermediate metavolcanic rock; tuff

Mine Run Complex - Melange Zone III (Proterozoic Z-Ordovician) at surface, covers 11 % of this area

Mine Run Complex - Melange Zone III

Lithology: melange

Chopawamsic Formation - Foliated felsite (Cambrian) at surface, covers < 0.1 % of this area

Chopawamsic Formation - Foliated felsite

Lithology: felsic volcanic rock

Quantico Formation - Micaceous quartzite (Ordovician) at surface, covers 0.2 % of this area

Quantico Formation - Micaceous quartzite

Lithology: quartzite; schist

Chopawamsic Formation - Interlayered felsic and mafic metavolcanic rocks (Cambrian) at surface, covers 22 % of this area

Chopawamsic Formation- Interlayered felsic and mafic metavolcanic rocks

Lithology: metavolcanic rock