Zinc isotope fractionation during magmatic differentiation and the isotopic composition of the bulk Earth

H. Chen, P.S. Savage, F.-Z. Teng, R.T. Helz, F. Moynier

Research output: Contribution to journalArticlepeer-review

231 Citations (Scopus)

Abstract

The zinc stable isotope system has been successfully applied to many and varied fields in geochemistry, but to date it is still not completely clear how this isotope system is affected by igneous processes. In order to evaluate the potential application of Zn isotopes as a proxy for planetary differentiation and volatile history, it is important to constrain the magnitude of Zn isotopic fractionation induced by magmatic differentiation. In this study we present high-precision Zn isotope analyses of two sets of chemically diverse, cogenetic samples from Kilauea Iki lava lake, Hawaii, and Hekla volcano, Iceland, which both show clear evidence of having undergone variable and significant degrees of magmatic differentiation.The Kilauea Iki samples display small but resolvable variations in Zn isotope composition (0.26‰
Original languageEnglish
Pages (from-to)34-42
Number of pages9
JournalEarth and Planetary Science Letters
Volume369-370
DOIs
Publication statusPublished - 1 May 2013

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