Mobley Mountain Granite

Mobley Mountain granite (Brock and others, 1987; Herz and Force, 1987). Leucocratic to mesocratic, medium-grained, equigranular, epidote-, florencite-, garnet-, and fluorite-bearing muscovite-biotite granite; faintly foliated. Salt and- pepper appearance is characteristic; aplite and pegmatite dikes cut the pluton and surrounding country rock. Dated at 652±22 Ma (Rb-Sr whole rock; Brock and others, 1987).
State Virginia
Name Mobley Mountain Granite
Geologic age Proterozoic Z
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granite
Comments Blue Ridge Basement Complex, Late Proterozoic Igneous
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 Amherst