Investigating the 3-D effects of mantle flow, melt production and melt transport in the Eastern Lau Spreading Center: Slab Dominated Flow

该计划将支持一名RIDGE2000博士后研究员为RIDGE2000重点站点之一的东刘传播中心开发特定地点的二维和三维数值模型。这项研究将为所提出的俯冲板块、地幔流动和扩张中心相互作用的模型提供定量和定性的检验，并可能对地震各向异性、晶格择优取向和熔体迁移和成分做出可检验的预测。这些模型将受到以前在这个传播中心收集的大量现有观测数据的限制。这项工作还与未来几年可能在同一地区进行的OBS实验有关。该计划将服务于RIDGE2000的总体目标，增强对弧后扩散过程的总体理解，并在与其博士研究互补的领域培养年轻的博士。

This program will support a RIDGE2000 postdoctoral researcher to develop site-specific, two- and three-dimensional numerical models of the Eastern Lau Spreading Center, one of the RIDGE2000 focus sites. The research will provide quantitative and qualitative tests for proposed models for the interaction of the subducting slab, mantle flow, and the spreading center and will make possibly testable predictions about seismic anisotropy, lattice preferred orientation, and melt migration and composition. The models will be constrained by the large amounts of existing observational data previously collected at this spreading center. The work is also linked to a potential OBS experiment in the same area in the coming years. The program will serve overall RIDGE2000 goals, enhance understanding of back arc spreading processes in general, and train a young Ph.D. in areas complementary to his doctoral research.