Development of Laser Fluorination Methods for the Stable Isotopic Analysis of Silicate, Oxide, and Sulfide Minerals using F2 gas.

该奖项将支持开发利用氟气体和激光加热释放氧和硫的技术，对氧化物、硅酸盐和硫化物矿物中的氧和硫同位素进行现场分析。技术开发工作将在华盛顿卡内基研究所的地球物理实验室进行，该实验室将为该项目提供必要的设备以及技术和科学人员。预计改进后的稳定同位素分析方法将广泛应用于需要高分辨率原位同位素分析的各种研究，例如，包括砂岩中结合碎屑颗粒的硅质胶结物、深成岩和火山岩中的斑晶、变质岩中的分带斑岩、硫化物、硅酸盐、以及矿床中的氧化矿物。

This award will support the development of techniques for making in situ analyses of oxygen and sulfur isotopes in oxide, silicate and sulfide minerals using fluorine gas and laser heating for the liberation of oxygen and sulfur. The technique development work will be carried out in the Geophysical Laboratory of the Carnegie Institution of Washington which will provide necessary equipment as well as technical and scientific personnel for the project. It is anticipated that the improved method of stable isotope analysis will have application in a wide variety of investigations where high-resolution, in situ, isotopic analyses are required including, for example, siliceous cements binding detrital grains in sandstones, phenocrysts in plutonic and volcanic rocks, zoned porphyroblasts in metamorphic rocks, and crustiform deposits of sulfide, silicate, and oxide minerals in ore deposits.