Unraveling the structure of water-bearing mantle minerals by multi-nuclear and multi-dimensional NMR spectroscopy

在本研究项目中，我们利用先进的多核和多维核磁共振波谱技术，揭示了一些重要的含水地幔矿物和相关化合物的详细结构（含水量和形态、阳离子有序/无序、缺陷等）。我们还发现了几种新的高压相，并确定了它们的晶体结构。这些信息对于了解地球内部矿物的物理性质和模拟地球的动力学和进化是必不可少的。

In this research program, we have unraveled the detailed structure (water content and speciation, cation order/disorder, defect, etc) for a number of important water-bearing mantle minerals and related compounds using advanced multi-nuclear and multi-dimensional NMR spectroscopy. We have also discovered several new high-pressure phases and have determined their crystal structures. Such information is indispensible for understanding the physical properties of minerals at the earth's interior and for modeling the dynamics and evolution of the earth.