CSEDI: Collaborative Research: Fine Structure of the Lower Mantle

9629279戈尔尼斯国际和平研究所提出了一个合作项目，综合了地震学和地球动力学的工具和概念，以阐明下地幔和“D”区的动力学和精细结构。地震数据将被用来确定明显的下涌和上涌的细节，浅层地球结构的污染将通过直接地震模拟和动态模型预测之间的相互作用来阐明。动态模型将被用来构建2D和3D速度模型，这些模型将被用于构建合成材料，它们的预测将与适当的数据集进行比较以进行验证和反馈，以产生改进的模型。最新的层析成像模型将在第一年用于构建2D截面和相应的合成材料，而全动态模型将用于研究热区的热化学边界，在这些区域，岩芯材料的部分熔融或夹带可能在一到两年内发挥作用。***

9629279 Gurnis The PIs propose a collaborative project integrating seismological and geodynamic tools and concepts to elucidate the dynamics and fine structure of the lower mantle and "D" region. Seismic data will be used to determine details of apparent down- and up-welling, and contamination from shallow earth structures will be elucidated by the interplay between direct seismic modeling and prediction made from dynamic models. Dynamic models will be used to construct 2D and 3D velocity models which in turn will be used to construct synthetics, and their predictions will be compared with appropriate data sets for verification and feed-back to produce improved models. Recent tomographic models will be used to construct 2D cross-sections and corresponding synthetics in year one, and fully dynamic models will be used to study thermochemical boundaries in hot regions where partial melting or entrainment of core material could play a role in a year or two. ***