Leucocharnockite (VAYl;0)

State	Virginia
Name	Leucocharnockite
Geologic age	Proterozoic Y
Original map label	Yl
Comments	Blue Ridge Basement Complex, Middle Proterozoic (Grenville-Age) Plutonic Rocks. From expanded explanation (ref. VA002): Leucocharnockite. Leucocratic, coarse-grained to megacrystic pyroxene-bearing granite, porphyritic in part with euhedral potassium feldspar phenocrysts, interstitial plagioclase and quartz; ferromagnesian minerals include orthopyroxene, clinopyroxene, magnetite-ilmenite; hornblende, red-brown biotite, and garnet may be present. Accessory minerals include zircon, monozite, and apatite. Pyroxene is thoroughly uralitized.
Primary rock type	granite
Secondary rock type
Other rock types
Lithologic constituents	Major Igneous > Plutonic > Charnockiteleucocharnockite
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/ [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/ [https://www.dmme.virginia.gov/commerce/]
Geographic coverage	Amherst - Augusta - Nelson - Rockbridge