Stable Isotope Geochemistry

我们建议继续实验室目前活跃的几个方面的研究，如下：(1)利用硅酸盐-碳酸盐交换技术实验测定氧同位素平衡常数。(2)榴辉岩氧同位素研究。(3)巴西碳酸盐岩的同位素研究。(4)科希斯坦岩基中地壳岩石的成因。(5)核废料储存库天然类似物的同位素和微量元素研究。(6)原始陨石和分异陨石中氧和硅的同位素变化；原始非球粒陨石中的微量元素研究。(7)用于球粒陨石成因的气体和熔融硅酸盐之间氧同位素交换动力学的实验室测量。(8)研究SNC陨石中的H2O和CO2与行星表面过程的关系。

We propose to continue on several lines of research in which the laboratory is currently active, as follows: (1) Experimental determinations of oxygen isotope equilibrium constants using silicate-carbonate exchange techniques. (2) Oxygen isotope studies of eclogites. (3) Isotopic studies of Brazilian carbonatites. (4) origin of crustal rocks as seen in the Kohistan batholith. (5) Isotopic and trace- element studies of a natural analog of a nuclear waste repository. (6) Oxygen and silicon isotope variations in primitive and differentiated meteorites; trace-element studies in primitive achondrites. (7) Laboratory measurement of the kinetics of oxygen isotope exchange between gases and molten silicates for application to the origin of chondrules. (8) Investigation of H2O and CO2 in SNC meteorites for their relevance to planetary surface processes.