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The elastodynamic Green's tensor in an anisotropic half-space (1990)

Ben-Menahem, A. ; Sena, A. G.

Oxford, UK : Blackwell Publishing Ltd

Geophysical journal international 102 (1990), S. 0

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ISSN: 1365-246X

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Geosciences

Notes: We study the effect of the free surface on waves from buried sources in an elastic half-space with azimuthal isotropy. The exact Green's tensor is obtained in the form of a Hankel transform over the horizontal wavenumber. The integrals are then evaluated at the far-field by means of the stationary phase approximation. An alternative representation of the Green's tensor is offered in the form of a hybrid multipole expansion valid also in the near-field.The variation of the reflection coefficients as a function of the image source angle is presented for various earth models and it is shown that the effect of the anisotropy at the source is more important than its effect on the reflected waves from the free surface.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1365-246X.1990.tb04475.x

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