Anisotropic tomography of P-wave traveltimes |
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Authors: | E. Mochizuki |
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Affiliation: | Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo, Tokyo 113, Japan |
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Abstract: | The ray path of a P -wave is specified in terms of the ray parameter and three Euler angles. the P -wave traveltime depends only on the ray parameter for a spherically symmetric earth. If we introduce an aspherical perturbation, including general ani-sotropy, the dependence on Euler angles can be expanded in terms of the rotation matrix for a fixed ray parameter. If the perturbation is isotropic, the expansion coefficients satisfy certain relations which may be used to obtain definite evidence for anisotropy rather than isotropic lateral heterogeneity. |
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Keywords: | anisotropy body wave tomography |
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