Structural Investigations of the Earth at Intermediate Length Scales

小行星9526372 这项研究是继续地震层析成像主要集中在北美上地幔的基础研究计划。 将特别强调在先前的工作中可见的特征，如黄石公园下的深羽，上地幔中法拉隆板块的残余，以及加拿大地盾下250公里深的根。 局部面波将被用来约束莫霍面不连续的深度，并且将利用波形反演和3D波弯曲算法来分析莫霍面走时数据。 进一步的应用将被开发，以扩展的方法，以更高的频率，在大的横向异质性的区域提供更高的分辨率。 深度脱水模型将通过在印度尼西亚/菲律宾俯冲区应用层析成像方法进行测试。 *** ??

9526372 Nolet This research is to continue a fundamental research program in seismic tomography concentrated mainly in the upper mantle of North America. Special emphasis will be on features visible in prior work such as a deep plume beneath Yellowstone, remnants of the Farallon plate in the upper mantle, and a 250 km deep root under the Canadian shield. Local surface waves will be used to constrain the depth of the Moho discontinuity and teleseismic travel time data will be analyzed with waveform inversions and 3D wave bending algorithms. Further applications will be developed to extend the methods to higher frequencies, giving higher resolution in regions of large lateral heterogeneity. Deep dehydration models will be tested by application of the tomographic methods to the Indonesia/Philippine subduction area. *** ??