Mount Rogers Formation - Greenstone with interbedded sedimentary rocks

Greenstone with interbedded sedimentary rocks; relict plagioclase phenocrysts are prominent in some greenstone.
State Virginia
Name Mount Rogers Formation - Greenstone with interbedded sedimentary rocks
Geologic age Proterozoic Z
Lithologic constituents
Major
Metamorphic > Metasedimentary
Metamorphic > Metaigneous > Greenstone
Comments In Grayson, Washington, and Smyth Counties only; Blue Ridge Anticlinorium (Southwest)
References

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 Grayson - Smyth