| AbstractWe employ seismic
reflection, magnetics, and electromagnetics to locate precisely the
southern extension of the Pahrump Valley Fault Zone (PVFZ) and examine
its subsurface geometry. The southern extension of the PVFZ is active
and represents a potential seismic hazard for Las Vegas. We observe
pronounced magnetic and conductivity anomalies, and truncations of
reflectors in the seismic profiles coincident with one of three Holocene
scarps in southern Pahrump Valley. These geophysical techniques in
combination can locate faults more precisely than the presence of eroded
scarps.Return to Table of
Contents |