Stable isotope fractionation of S, Te, and Pd and the roles of core formation and late accretion on siderophile volatile elements in the Earth (B02+)

本研究的目的是研究地幔岩石(S、Te和Pd)和球粒陨石(Te和Pd)的稳定同位素组成，并实验标定上述元素在成核过程中金属-硅酸盐平衡所产生的稳定同位素分馏。这些测量和实验将约束S、Te和Pd及其同位素在岩心形成过程中的地球化学行为，并可能有助于解释所观察到的球粒陨石和块体硅酸盐地球之间的同位素差异。

The aim of this study is to investigate the stable isotope composition of terrestrial mantle rocks (S, Te and Pd) and chondritic meteorites (Te and Pd) and to calibrate experimentally the stable isotope fractionation for the aforementioned elements imparted by metal-silicate equilibration during core formation. The measurements and experiments will constrain the geochemical behavior of S, Te, and Pd and their isotopes during core formation and may help to explain the observed isotopic differences between chondrites and bulk silicate Earth.