Surface Waves, Anisotropy, and Mantle Flow

小行星9706056 这项研究涉及一个新的全球和区域分析地震各向异性使用面波数据。 这项研究的结果有望揭示大规模和中等规模的流动模式在海洋地幔的性质。 还将研究这些数据与利用剪切波分裂数据为大陆岩石圈建立的各向异性模型的兼容性。 自从上一次利用面波对各向异性进行大规模研究以来，已经有好几年的时间了，在这段时间里，潜在的数据集已经大大扩展。 区别于以往的研究，这项研究的关键功能是使用粒子运动信息，以及相位从横向不均匀性的各向异性效应的歧视。 ***

9706056 Laske This research involves a new global and regional analysis of seismic anisotropy using surface wave data. The results of this study are expected to shed light on the nature of large-scale and medium-scale flow patterns in the oceanic mantle. The compatibility of the data with anisotropy models developed for the continental lithosphere using shear-wave splitting data will also be studied. It has been several years since the last large-scale study of anisotropy using surface waves and the potential datasets have expanded tremendously in the intervening time. The critical feature which distinguishes this study from previous studies is the use of particle motion information as well as phase to discriminate anisotropic effects from those of lateral heterogeneities. ***