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

Geologic units in Culpeper county, Virginia

[Additional scientific data in this geographic area]

Metagabbro (Proterozoic Z-Cambrian) at surface, covers 1.0 % of this area

Metagabbro

Lithology: amphibolite; amphibolite

Catoctin Formation - Metabasalt (Proterozoic Z-Cambrian) at surface, covers 10 % of this area

Catoctin Formation - Metabasalt.

Lithology: meta-basalt

Newark Supergroup; Jurassic Interbedded Sandstone and Siltstone (Lower Jurassic) at surface, covers 0.4 % of this area

Interbedded sandstone and siltstone

Lithology: sandstone; siltstone

Metasedimentary Rocks Undivided (Cambrian-Ordovician) at surface, covers 0.2 % of this area

Metasedimentary rocks

Lithology: metasedimentary rock; quartzite; schist; phyllite;

Catoctin Formation - Metasedimentary rocks (Proterozoic Z-Cambrian) at surface, covers < 0.1 % of this area

Catoctin Formation - Metasedimentary rocks

Lithology: quartzite; sandstone; meta-argillite; phyllite

Metagraywacke, Quartzose Schist, and Melange (Proterozoic Z-Cambrian) at surface, covers 0.9 % of this area

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

Lithology: meta-argillite; schist; melange

Ultramafic Rocks (Proterozoic Z-Cambrian) at surface, covers 0.3 % of this area

Ultramafic rocks

Lithology: ultramafic rock; schist

Mine Run Complex - Melange Zone II (Proterozoic Z-Ordovician) at surface, covers 0.8 % of this area

Mine Run Complex - Melange Zone II

Lithology: melange

Mafic Plutonic Rocks (Proterozoic Z-Cambrian) at surface, covers < 0.1 % of this area

Mafic plutonic rocks as exotic blocks within melange units

Lithology: mafic rock

Newark Supergroup; Sandstone, undifferentiated (Upper Triassic) at surface, covers 3 % of this area

Sandstone, undifferentiated

Lithology: sandstone

Candler Formation - Phyllite and schist (Cambrian) at surface, covers < 0.1 % of this area

Candler Formation - Phyllite in central Blue Ridge Anticlinorium; Phyllite, metasiltstone and quartz-mica schist in southwest Blue Ridge Anticlinorium

Lithology: phyllite; schist; metasedimentary rock

Robertson River Igneous Suite - Hitt Mountain alkali feldspar syenite (Proterozoic Z) at surface, covers 0.3 % of this area

Robertson River Igneous Suite - Hitt Mountain alkali feldspar syenite

Lithology: alkali syenite

Lynchburg Group; Quartzite (Proterozoic Z) at surface, covers < 0.1 % of this area

Lynchburg Group - Quartzite

Lithology: quartzite

Micaceous Quartzite (Cambrian) at surface, covers 0.2 % of this area

Micaceous quartzite

Lithology: quartzite; metasedimentary rock; phyllite

Robertson River Igneous Suite - Amissville alkali feldspar granite (Proterozoic Z) at surface, covers < 0.1 % of this area

Robertson River Igneous Suite - Amissville alkali feldspar granite

Lithology: granite

Mine Run Complex - Melange Zone I (Proterozoic Z-Ordovician) at surface, covers 1 % of this area

Mine Run Complex - Melange Zone I

Lithology: melange

Marble (Proterozoic Z) at surface, covers < 0.1 % of this area

Marble.

Lithology: marble

Porphyroblastic Granite Gneiss (Proterozoic Y) at surface, covers 4 % of this area

Porphyroblastic granite gneiss

Lithology: granitic gneiss

Robertson River Igneous Suite; Battle Mountain Alkali Feldspar Granite - felsite (Proterozoic Z) at surface, covers 0.7 % of this area

Robertson River Igneous Suite - Battle Mountain Alkali Feldspar Granite - felsite

Lithology: felsic volcanic rock

Felsic/Mafic Volcanic Rocks (Proterozoic) at surface, covers < 0.1 % of this area

Felsic/mafic volcanic rocks as exotic blocks within melange units

Lithology: metavolcanic rock

Lynchburg Group; Graphitic phyllite and metasiltstone (Proterozoic Z) at surface, covers 0.2 % of this area

Lynchburg Group - Graphitic phyllite and metasiltstone

Lithology: phyllite; meta-argillite; slate; metasedimentary rock; quartzite

Newark Supergroup; Triassic Sandstone, Siltstone, and Shale (Upper Triassic) at surface, covers 2 % of this area

Interbedded sandstone, siltstone, and shale

Lithology: sandstone; siltstone; shale

Metavolcanic and Metavolcanic Clastic Phyllite (Proterozoic - Cambrian) at surface, covers 0.2 % of this area

Metavolcanic and metavolcanic clastic phyllite

Lithology: phyllite

Metasandstone and Metasiltstone (Proterozoic Z-Cambrian) at surface, covers 0.3 % of this area

Metasandstone and metasiltstone.

Lithology: metasedimentary rock; meta-argillite

Robertson River Igneous Suite - Arrington Mountain alkali feldspar granite (Proterozoic Z) at surface, covers 2 % of this area

Robertson River Igneous Suite - Arrington Mountain alkali feldspar granite

Lithology: granite

Lynchburg Group; Monumental Mills Formation (Proterozoic Z) at surface, covers 3 % of this area

Lynchburg Group; Monumental Mills Formation - Metasandstone, laminated metasiltstone, and mudstone.

Lithology: metasedimentary rock; meta-argillite; mudstone

Plagiogranite Tonalite (Cambrian-Ordovician) at surface, covers 0.8 % of this area

Plagiogranite tonalite

Lithology: tonalite

Lynchburg Group; Metagraywacke (Proterozoic Z) at surface, covers 5 % of this area

Lynchburg Group - Metagraywacke

Lithology: meta-argillite; schist; conglomerate

Diabase (Jurassic) at surface, covers 12 % of this area

Diabase

Lithology: diabase

Catoctin Formation -Metabasalt breccia (low titanium) (Proterozoic Z-Cambrian) at surface, covers 0.3 % of this area

Catoctin Formation - Metabasalt breccia (low titanium)

Lithology: meta-basalt

Fauquier Formation - Metasiltstone and phyllite (Proterozoic Z) at surface, covers 0.1 % of this area

Fauquier Formation - Meta-argillite is laminated metasiltstone; and phyllite.

Lithology: meta-argillite; phyllite

Layered Biotite Granulite and Gneiss (Proterozoic Y) at surface, covers 7 % of this area

Layered biotite granulite and gneiss.

Lithology: gneiss; granulite

Newark Supergroup; Conglomerate, greenstone clasts (Upper Triassic) at surface, covers 7 % of this area

Conglomerate, greenstone clasts

Lithology: conglomerate

Newark Supergroup; Triassic shale and siltstone (Triassic) at surface, covers 12 % of this area

Interbedded shale and siltstone

Lithology: shale; siltstone

Robertson River Igneous Suite - Battle Mountain granite (Proterozoic Z) at surface, covers 0.2 % of this area

Robertson River Igneous Suite - Battle Mountain granite

Lithology: granite

Lynchburg Group; Charlottesville Formation (Proterozoic Z) at surface, covers 11 % of this area

Lynchburg Group; Charlottesville Formation - Graphitic metasiltstone, feldspathic metasandstone, and quartzite.

Lithology: meta-argillite; sandstone; quartzite; phyllite; slate

Lynchburg Group - Conglomerate and metagraywacke (Proterozoic Z) at surface, covers 0.4 % of this area

Lynchburg Group - Conglomerate and metagraywacke.

Lithology: conglomerate; metasedimentary rock

Goldvein Pluton (Cambrian-Ordovician) at surface, covers 0.6 % of this area

Goldvein Pluton - Metamonzogranite.

Lithology: granitic gneiss

Mine Run Complex - Melange Zone III (Proterozoic Z-Ordovician) at surface, covers 7 % of this area

Mine Run Complex - Melange Zone III

Lithology: melange

Mylonite, Mylonite Gneiss, and Cataclastic Rocks (Proterozoic - Paleozoic ?) at surface, covers < 0.1 % of this area

Mylonite, mylonite gneiss, and cataclastic rocks.

Lithology: mylonite; gneiss; cataclastite

Marshall Metagranite (Proterozoic Y) at surface, covers 0.3 % of this area

Marshall Metagranite - Medium-granied biotite metagranite

Lithology: granite

Porphyoblastic Biotite-Plagioclase Augen Gneiss (Proterozoic Y) at surface, covers 0.7 % of this area

Porphyoblastic biotite-plagioclase augen gneiss

Lithology: augen gneiss

Fauquier Formation - Arkosic metasandstone (Proterozoic Z) at surface, covers 3 % of this area

Fauquier Formation - Arkosic metasandstone

Lithology: metasedimentary rock

Chopawamsic Formation - Interlayered felsic and mafic metavolcanic rocks (Cambrian) at surface, covers 0.3 % of this area

Chopawamsic Formation- Interlayered felsic and mafic metavolcanic rocks

Lithology: metavolcanic rock

Newark Supergroup; Jurassic Basalt (Lower Jurassic) at surface, covers 0.3 % of this area

basalt

Lithology: basalt

Fauquier Formation -Meta-arkose and metasiltstone (Proterozoic Z) at surface, covers 1 % of this area

Fauquier Formation - Crossbedded metasandstone

Lithology: metasedimentary rock