Central Virginia Regional Seismic Network: Crustal Velocity Structure in Central and Southwestern Virginia, Volume 88 |
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Common terms and phrases
amplitude analysis angle Appalachian mountains Appalachian Plateau apparent surface velocity arrival time interval assumed azimuth of approach Bath County Blue Ridge mountains Bollinger central Virginia network central Virginia refraction central Virginia region computed confidence interval crust crustal model crustal P wave crustal velocity structure depth DISTANCE km distance range earthquake data error estimated epicentral distance explosions Figure Fluvanna County Giles County hypocenters indicates km/sec least squares located Mohorovicic discontinuity observations phase velocities Piedmont province Poisson's ratio ray paths refraction study S-P arrival secondary arrivals seismic seismic refraction seismograms seismometers South Carolina southwestern Virginia standard deviation Steinhart and Meyer surface velocity determinations travel time data travel time plot TRAVEL TIME sec travel-time residuals tripartite method tripartite network upper mantle velocity V&R PL Valley and Ridge velocity model Virginia refraction profile wave apparent surface wave arrival wave data wave velocity western shotpoint