Collaborative Research: The African Mantle: A Case Study of Seismic Structure, Composition and Dynamics

该项目将联合开展地幔地震结构、成分和动力学研究，战略重点是非洲。 结合地震正演波形模拟和走时反演，我们将试图绘制非洲地幔中地震异常的几何形状、震级和锐度。 通过改进的上地幔和下地幔的地震模型，我们还将利用其他地球物理约束，包括大地水准面，地球表面和核幔边界的地形，板内应力，板块运动和矿物物理实验结果，研究地幔异常的地球动力学和成分方面。

EAR-0001232Wen, LianxingThis project will conduct a joint study of seismic structure, composition and dynamics of the mantle, with a strategic focus on Africa. Combining seismic forward waveform modeling and travel time inversion, we will attempt to map the geometry, magnitude and sharpness of seismic anomalies throughtout the mantle beneath Africa. With improved seismic models of the lower and upper mantle, we will also study the geodynamical and compositional aspects of mantle anomalies using other geophysical contraints, including geoid, topography at the Earth's surface and core-mantle boundary, intra-plate stress, plate motion, and experimental results from mineral physics.