Physical Sciences and Mathematics Commons^™

The Unusual Temporal And Spatial Slip History Of The Wassuk Range Normal Fault, Western Nevada (Usa): Implications For Seismic Hazard And Walker Lane Deformation, Benjamin Surpless, Glenn Kroeger

Benjamin E Surpless

We document temporal and spatial variations in vertical displacement rate across 6 temporal orders of magnitude to better under stand how the 100-km-long, east-dipping Wassuk Range normal fault system has accommodated strain in the context of the Walker Lane, a tectonically active, NNWtrending zone of dextral and extensional deformation that affects significant portions of western Nevada and eastern California. We combine 10Be and 26Al cosmonuclide exposure ages with shallow seismic and gravity data from the buried hanging wall of the Wassuk fault to derive a post-113 ka (105 yr time scale) vertical displacement rate of 0.82 ± 0.16 mm/yr. We …