Experimental Noble Metal Geochemistry

Drakewald-0074036本项目提出了一个实验计划，以继续研究高度亲铁元素的溶解度和矿物/熔体分配行为。 这一工作直接关系到Re-Os、Pt-Os同位素和铂族元素作为地球演化和岩浆作用的成岩示踪剂的应用，以及贵金属的热力学和经济地质学。这一持续计划的主要科学目标是量化元素Re、Pt、Os和其他PGE的亲铁和亲石行为的地球化学。 贵金属母-子同位素对的地球化学系统学的理解是解释这些系统的主要活跃的地球过程，以及在早期地球的增生和原始分异方面至关重要。

DrakeEAR-0074036This project proposes an experimental program to continue an investigation of the solubility and mineral/melt partitioning behavior of highly siderophile elements. The proposed work bears directly on the use of Re-Os, Pt-Os isotopes and platinum-group elements (PGEs) as petrogenetic tracers of Earth evolution and igneous processes as well as thermodynamics and economic geology of the noble metals. The major scientific goals of this continuing program are to quantify the geochemistry of the elements Re, Pt, Os, and other PGEs with respect to their siderophile and lithophile behavior. An understanding of the geochemical systematics of noble metal parent-daugther isotope pairs is essential in interpreting these systems in terms of major active Earth processes as well as in the accretion and primordial differentiation of the early Earth.