PGE and Chalcophile element concentrations in peridotitic sulfides from the St. Elena ophiolite, Costa Rica

Abstract: This dataset presents in situ (LA-ICPMS; down to a 10 micron beam size) major, minor, PGEs and chalcophile elements on sulfides from five partially serpentinized peridotites from the St. Elena ophiolite, Costa Rica. PGE-Re concentrations in sulfides (dominant petlandites) are highly variable, ranging from 1 – 100,000 times that of primitive mantle (PM). PM-normalized PGE-Re patterns in the sulfides are dominated by strong Pt depletions relative to Os, Ir, Ru and Pd. Pb concentrations average around 2.7 ppm.

Other Description: Holm, J., M. Bizimis, E. Schwarzenbach, D. Foustoukos, C. Frisby, A. Brandon, and E. Gazel (2015), Platinum group and chalcophile element systematics of serpentinized peridotites from the St. Elena ophiolite in Costa Rica, in AGU Fall Meeting, pp. V53B-3136, San Francisco, URL: https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/73156.