Geochemical and petrologic study of the Fries-Rockfish Valley Fault near Roanoke, Virginia
MetadataShow full item record
These terranes are referred to as the Pedlar massif, a high-grade granulite terrane, to the northwest and the Lovingston massif, a lower-grade amphibolite terrane to the southeast. The connection between these terranes has been debated for decades.
A combined petrologic and geochemical approach has been applied in two transects across the shear zone, four kilometers apart along strike near Roanoke, Virginia, to study the geochemical and petrologic evidence of shearing along the fault and constrain the nature and timing of possible retrogressive and fluid infiltration events that affected these rocks. Mineral assemblages and microstructures at the northeastern Horsepen Mountain and at the southwestern Explore Park transects indicate that deformation occurred along the fault under greenshist facies conditions.
- Masters Theses