Studies of Mantle Anisotropy with Long-Period Seismology

本研究是对长周期地震研究的继续 几种理想各向同性和各向异性土的响应 模型，以确定各向异性的可观察方面， 地球的上地幔 初步计算表明， 上地幔的方位角各向异性的百分之几，空间 在一个典型的海洋盆地的长度尺度上是连贯的， 足以在长时间内产生显著的波形异常， 周期表面波 在本研究中，这一理论将得到扩展 测试将在不同类型的各向异性 上地幔

This research is to continue study of the long-period seismic response of several idealized isotropic and anisotropic earth models to determine the observable aspects of anisotropy in the earth's upper mantle. The initial calculations suggest that upper-mantle azimuthal anisotropy of a few percent, spatially coherent over the length scale of a typical ocean basin, is sufficient to generate significant waveform anomalies in long- period surface waves. In this research the theory will be extended and tests will be done for different types of anisotropy in the upper mantle.