Simultaneous inversion of seismic data

Abstract

Summary. The resolving power of different data sets, consisting of surface‐wave dispersion measurements and S travel times, are compared for a continental structure. The shear velocity in the low‐velocity zone can be resolved in some detail with higher‐mode phase‐velocity data. Sufficient resolution for small density contrasts (0.03 g cm−3) until depths of ∼ 300 km can be reached if higher‐mode group velocities are available as well, even at a precision as low as 0.10 km/s. At greater depths the density is not resolved, and here travel‐time data are superior to higher modes in resolving the shear velocity. Copyright © 1978, Wiley Blackwell. All rights reserved