Accomplishment Based Renewal: Numerical Modeling of Coupled Magma-Hydrothermal Processes at Oceanic Spreading Centers Including Magma Replenishment and Phase Separation

海洋扩张中心的岩浆热液过程是地球热状况的重要组成部分，在海洋和地壳之间循环主要和次要化学成分方面发挥着关键作用。 这些过程导致金属矿床的形成，并为海底独特和多样的微生物和大型动物生态系统提供养分。 本研究使用最近开发的数值模拟代码，鱼，开发的第一套模型，连接随时间变化的对流，结晶和补充的岩浆体在大洋扩张中心与多相热液流体循环在大洋地壳。这项工作为了解几十年来对海底热液系统的观测提供了一个基本的、全面的、目前缺乏的定量框架。 它还将提供深入了解岩浆热液相互作用和海洋扩张中心的热传递。更重要的是，这些模型将为连接热液循环与海洋扩张中心复杂的地球化学过程提供一个必要的起点。 它还将培训一名学生掌握最先进的建模技术。

Magma-hydrothermal processes at oceanic spreading centers are an important component of Earth's thermal regime and play a critical role in cycling major and minor chemical constituents between the oceans and the crust. These processes lead to the formation metallic ore deposits and provide nutrients for unique and diverse microbial and macrofaunal ecosystems on the sea floor. This research uses the recently developed numerical modeling code, FISHES, to develop the first set of models that link time-dependent convection, crystallization, and replenishment of a magma body at an oceanic spreading center with multiphase hydrothermal fluid circulation in the oceanic crust. The work provides an essential, holistic, and presently lacking quantitative framework for understanding decades of observations of seafloor hydrothermal systems. It will also provide insight into magma-hydrothermal interactions and heat transfer at oceanic spreading centers. Of broader importance, these models will provide a necessary starting point for linking hydrothermal circulation with complex biogeochemical processes at oceanic spreading centers. It will also train a student in state-of-the-art modeling techniques.