Ray-velocity vectors of reflected S1S1 and S2S2 waves displayed on the ray-velocity surfaces in a simple homogeneous velocity model with triclinic anisotropy

Vaclav Bucha

Summary

We generate and display ray-velocity surfaces of S1 and S2 waves together with the ray-velocity vectors of reflected anisotropic-ray-theory S1S1 and S2S2 waves for two selected common-shot gathers. The velocity model is composed of two homogeneous layers and one curved interface. The anisotropy of the upper layer is triclinic and the bottom layer is isotropic. The presented figures allow us to distinguish the travel-time triplications due to anisotropy from the travel-time triplications caused by the curved interface.

Keywords

Ray-velocity surface, ray-velocity vector, triclinic anisotropy, elastic waves, anisotropic velocity model

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Seismic Waves in Complex 3-D Structures, 30 (2020), 63-72 (ISSN 2336-3827, online at http://sw3d.cz).