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Metavolcanic and Metasedimentary Rocks - Felsic metatuff, mica schist, and gneiss.

Metavolcanic and Metasedimentary Rocks - Felsic metatuff, mica schist, and gneiss.
StateVirginia
NameMetavolcanic and Metasedimentary Rocks - Felsic metatuff, mica schist, and gneiss.
Geologic ageCambrian
Original map label[fvs
CommentsWestern Piedmont, Central. From expanded explanation (ref. VA002): Felsic metatuff, mica schist, and gneiss. Includes light-gray to grayish-pink, very-fine-grained to aphanitic, thin-bedded dacitic metatuff, locally containing subhedral to euhedral plagioclase phenocrysts; very-light-gray pinstriped quartz-rich, muscovite and biotite-muscovite schist; and, medium-gray fine-grained salt-and-pepper biotite-muscovite gneiss. Mineralogy: quartz + plagioclase + muscovite +/- biotite + epidote + magnetite. These lithologies are interlayered with subordinate amounts of greenstone metabasalt and amphibole gneiss.
Primary rock typefelsic metavolcanic rock
Secondary rock typemica schist
Other rock typesgneiss
Lithologic constituents
Map references
Digital Representation of the 1993 Geologic Map of Virginia", 2003, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, viewing software not included. This is a digital version of "Geologic Map of Virginia" published in 1993. Available from: https://www.dmme.virginia.gov/commerce/
Unit references
Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000
Digital Representation of the 1993 Geologic Map of Virginia - expanded explanation: 2003, Commonwealth of Virginia, Department of Mines, Minerals, and Energy, Divsion of Mineral Resources, Publication 147, 85 pp
Digital Representation of the 1993 Geologic Map of Virginia", 2003, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, viewing software not included. This is a digital version of "Geologic Map of Virginia" published in 1993. Available from: https://www.dmme.virginia.gov/commerce/
Geographic coverageAppomattox - Buckingham - Campbell

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