Experimental Partitioning of Trace Elements into Schreibersite with Applications to IIG Iron Meteorites.

ABSTRACT: Some of the defining characteristics of the IIG iron meteorite group are their high bulk P contents and massive, coarse schreibersite, which have been calculated to make up roughly 11-14 wt% of each specimen. In this study, we produced two datasets to investigate the formation of schreibersites in IIG irons: measurements of trace elements in the IIG iron meteorite Twannberg and experimental determinations of trace element partitioning into schreibersite. The schreibersite-bearing experiments were conducted with schreibersite in equilibrium with a P-rich melt and with bulk Ni contents ranging from 0-40 wt%. The partitioning behavior for the 20 elements measured in this study did not vary with Ni content. Comparison of the Twannberg measurements with the experimental results required a corre

SUBMITTER: Chabot NL 

PROVIDER: S-EPMC7250238 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature