Compressional Wave Anisotropy in the Crust and Upper Mantle.

摘要

A large number of standard marine refraction stations have been examined to determine the general relation of crustal and mantle velocity to spreading direction and age in the Pacific. Crustal anisotropy in insignificant, as is variation of lower crustal velocity with age. Mantle velocities exhibit a high correlation with both age and azimuth indicating an increase of velocity with age and about 5% anisotropy with highest velocity in the direction perpendicular to the local magnetic anomalies.