Abstract
Metamorphic gold-quartz veins in northwestern Nevada, U.S.A. formed during both brittle and brittle-ductile shear deformations in three tectono-stratigraphic terranes. The veins are concentrated in a 60- to 100-km-wide, 200-km-long, linear, northtrending corridor. The veins show a consistent northeast strike in the central parts of the corridor and several kinematic indicators strongly suggest that the broad corridor acted as a regional-scale shear zone. The metamorphic grade of the host rocks ranges from sub-greenschist to amphibolite facies, but most host rocks have been metamorphosed to greenschist facies.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have