Distribution of the Platinum Group Elements Between Sulfide and Silicate Melts

首席研究员将研究某些铂族元素（铱和钯）在硫化物和硅酸盐熔体之间的分布，以及这种分布与硫逸度、氧逸度和温度的关系。平衡实验将在高压（7-10千巴）的活塞缸装置中进行，以及在垂直马弗管炉的低压下进行。研究结果将为理解和解释铂族元素地球化学，以及解决诸如某些火成岩演化等更普遍的问题提供目前无法获得的基础数据。

The principal investigator will study the distribution of certain platinum group elements (iridium and palladium) between sulfide and silicate melts and dependencies of this distribution on sulfur fugacity, oxygen fugacity, and temperature. Equilibration experiments will be carried out at high pressure (7-10 kilobars) in piston cylinder apparatus, as well as at lower pressures in a vertical muffle tube furnace. Results will provide basic data, currently unavailable, to understand and interpret platinum group element geochemistry, as well as to address more general problems such as the evolution of certain kinds of igneous rocks.