Altered Diorite and Gabbro

Grayish-olive-green, medium-grained gabbro, hornblende gabbro, and diorite exhibit variable degrees of saussuritization and uralitization. The gabbros are commonly concordant with adjacent metavolcanic rocks.
State Virginia
Name Altered Diorite and Gabbro
Geologic age Proterozoic
Lithologic constituents
Igneous > Plutonic > Gabbroic > Gabbro
Igneous > Plutonic > Dioritic > Diorite
Comments Southeastern Piedmont

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 Brunswick - Dinwiddie - Greensville