Experimental Studies in the Kinetics of Petrologic Processes

本项目涉及深部地壳和上地幔化学过程的研究，重点研究但不限于扩散。该研究的五个关键子主题是：(1)下地壳和上地幔中流体和熔体的连通性；(2)岩浆中的扩散，特别关注硫；(3)矿物中的晶格扩散，使用卢瑟福后向散射光谱（RBS）作为深度剖面的工具，使用非常短的实验室诱导扩散梯度；(4)部分熔融地幔的渗透率，使用熔融碳酸钠代替玄武岩熔体的技术。(5)俯冲带中板块衍生流体的化学运移，重点研究了含水基性组合中含水流体的可控脱挥发、释放和捕获技术。

9406916 Watson This project involves research related to deep crustal and upper mantle chemical processes, focusing on but not limited to diffusion. Five key sub themes of the research are: (1) connectivity of fluids and melts in the lower crust and upper mantle, (2) diffusion in magmas, with specific focus on sulfur, (3) lattice diffusion in minerals, using Rutherford Backscattering Spectroscopy (RBS) as a tool for depth-profiling very short, laboratory induced diffusion gradients, (4) permeability of the partially molten mantle, using a technique in which molten Na-carbonate is substituted for basaltic melt, and (5) chemical transport by slab-derived fluids in subduction zones, focused on development of techniques for controlled devolatization, release, and capture of aqueous fluids from hydrous mafic assemblages.