Three-Dimensional Upwelling Beneath a Mid-Ocean Ridge

这是对海中扩张中心之下形成地幔流动的动力学过程的理论研究。建立扩张中心下的三维流动数值模型，试图解释沿缓慢扩张脊观察到的牛眼重力异常，以及沿中、快速扩张脊观察到的牛眼重力异常。这些模型将包括熔化对形成密度结构的不可逆影响，并将探索空间、温度和成分依赖流变学的影响。

This is a theoretical study of the dynamic processes shaping mantle flow beneath mid-ocean spreading centers. three dimensional numerical models of flow beneath a spreading center will be constructed to try to explain observed bulls-eye gravity anomalies along slow-spreading ridges and their absence along intermediate and fast spreading ridges. The models will include the irreversible effects of melting on shaping the density structure and will explore the effects of spatial, temperature, and composition dependent rheology.