Foliated Biotite Granite

Leucocratic to mesocratic, medium-grained, equigranular, crudely-layered; includes hornblende-biotite granite and, monzogranite. Geophysical signature: strong positive radiometric signature; negative magnetic signature.
State Virginia
Name Foliated Biotite Granite
Geologic age Proterozoic
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granitefoliated biotite granite
Igneous > Plutonic > Granitic > Granite > Monzogranite
Comments Central Virginia Volcanic-Plutonic Belt
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 Appomattox - Prince Edward