Quantico Formation - Micaceous quartzite

Light-gray, fine- to medium grained quartzite and quartzose muscovite schist. Mineralogy: quartz + muscovite + plagioclase ± microcline. This lithology occurs as thin discontinuous lenses at the base of the Quantico; thin diopsidic calcsilicate layers are also found locally in the lower part of the Quantico (Pavlides, 1980).
State Virginia
Name Quantico Formation - Micaceous quartzite
Geologic age Ordovician
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Schist
Comments Central Virginia Volcanic-Plutonic Belt

Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000.

Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000.

NGMDB product
Counties Fluvanna - Goochland - Louisa - Spotsylvania - Stafford