Impact of anisotropic and inhomogeneous medium on measuring seismic shear-wave splitting

Shear Waves Through Non Planar Interface Between Anisotropic Inhomogeneous and Visco-Elastic Half-Spaces

A problem of reflection and transmission of a plane shear wave incident at a corrugated interface between transversely isotropic inhomogeneous and visco-elastic half-spaces is investigated. Applying appropriate boundary conditions and using Rayleigh’s method of approximation expressions for reflection and transmission coefficients are obtained for the first and second order approximation of the...

Wave-equation shear wave splitting tomography

G JI S ei sm ol og y Wave-equation shear wave splitting tomography Maureen D. Long,1,∗ Maarten V. de Hoop2 and Robert D. van der Hilst1 1Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA. E-mail: [email protected] 2Center for Computational and Applied Mathematics, Purdue University, 150 N. University...

Frequency-dependent shear wave splitting and heterogeneous anisotropic structure beneath the Gulf of California region

The Gulf of California region has undergone a major evolution over the past ∼15Ma, since subduction of the now-extinct Farallon plate ceased and transform motion began, leading to the initiation of rifting and the opening of the Gulf of California ∼5Ma ago. The character of dynamic processes in the upper mantle beneath the region remains poorly understood, but constraints on seismic anisotropy ...

Continental scale shear wave splitting analysis: Investigation of seismic anisotropy underneath the Australian continent

The structure of the upper mantle beneath the Australian continent is investigated using teleseismic shear wave splitting to extract seismic anisotropy. Measurements have been performed on data recorded at 190 sites with portable broadband seismic recorders, spanning almost the entire surface of the continent since 1992. The average time span of the various deployments, primarily designed for s...

Wave Propagation in an Inhomogeneous Medium