Translations:Wave velocity/8/en

In an anisotropic medium, the velocities of compressional and shear waves depend on the direction of propagation. In an anisotropic layered medium, compressional waves generally have a velocity higher in the direction parallel to the layering than in the direction perpendicular to the layering. Two types of shear waves propagate in the direction of the layering. One type is the SV wave, which has particle motion perpendicular to the layering. The other type is the SH wave, which has particle motion parallel to the layering.