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Seismic Anisotropy and Global Geodynamics
Reviews in Mineralogy and Geochemistry, 2002For many years, seismic anisotropy was often neglected, mostly because of the inherent heavy mathematical and computational tools needed to describe and model its effects on seismic waves. The usual basic knowledge about propagation in isotropic media cannot easily apply to anisotropic media, where new phenomena come up, such as birefringence (or shear-
J.-P. Montagner, L. Guillot
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Interpretation of seismic anisotropy parameters
53rd EAEG Meeting, 1991In accordance with experimental data, in many cases sedimentary deposits are found to be anisotropic media for long seismic waves. With sufficient approximation the model of these rocks is transversely isotropic media (TIM) with horizontal or vertical plane of isotropy, and they are called polar or azimuthal anisotropy, respectively.
F. M. Lyakhovitsky, L. Y. Brodov
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Seismic anisotropy and mantle flow
Journal of Geophysical Research: Solid Earth, 1989Seismic anisotropy in the mantle is primarily due to deformation‐induced lattice preferred orientation (LPO) of olivine crystals. The aim of this paper is to better understand how such LPO is produced by flow, and to learn whether observations of seismic anisotropy can be used to infer the local direction of flow within the mantle.
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Recent Advances and Challenges of Waveform‐Based Seismic Location Methods at Multiple Scales
Reviews of Geophysics, 2020Lei Li, Jingqiang Tan, Benjamin Schwarz
exaly