Experimental and Theoretical Study of Element Partitioning Among Brine, Vapor and Melt

9506631私人投资公司将获得实验数据并建立模型，涉及地热能系统、火山灾害、火山对大气的输入以及矿藏勘探等问题。在这项研究的第一部分，也是最广泛的部分，将对许多元素在熔体、卤水、蒸汽和晶体之间的分配进行实验，涵盖一系列熔体组成、温度、氧逸度和1千巴及以下的压力。在第二部分中，P.I.s将完全重做他们的岩浆去挥发模型，以解释渗流模型对去挥发蒸汽+卤水化学的影响，并解释我们的实验室和其他工作人员收集的新平衡。拟议研究的第三部分将研究挥发分出溶对含水矿物以及伴生花岗岩结构的可观察到的影响。详细的矿物学、地球化学学和岩石学(微观和微观)将与上述建模和实验工作的结果相结合，并根据上述结果进行解释。

9506631 Candela The P.I.s will obtain experimental data and construct models that bear on problems of geothermal energy systems, volcanic hazards, volcanic inputs to the atmosphere, and exploration for mineral deposits. In the first, and most extensive part of this research endeavor, experiments will be performed on the partitioning of many elements, between melt, brine, vapor, and crystals, covering a range of melt compositions, temperatures, oxygen fugacities and pressures at and below 1 kilobar. In the second part, the P.I.s will completely redo their magmatic devolatilization model to account for the effects of a percolation model on the chemistry of devolatilized vapor+brine, and account for the new equilibria that have been collected by our lab and by other workers. The third part of the proposed research will study the observable effects of volatile exsolution on hydrous minerals, and on textures of the associated granitic rocks. Detailed mineralogy, geochemistry and petrography (micro- and marcroscopic) will be conbined with, and interpreted in light of , the results of modeling and experimental efforts outlined above.