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(2020) Kinetic Fe and Mg Isotope Fractionation during Rapid Crystal Growth in Basaltic Melt

Wu H & He Y


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13f: Room 4, Thursday 25th June 00:51 - 00:54

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Submitted by Franck Poitrasson on Wednesday 24th June 11:09
Dear Colleagues, Thank you for this interesting presentation. I note the Fe isotope differences between olivine and glass are very small and error bars often overlap. Have you conducted statistic tests? Also, a recent study by Prissel et al. (2018) GCA 238: 580-598 found no equilibrium Fe isotope fractionation between olivine and melts of various compositions on the basis of theoretical and experimental approaches. So this would mean the small isotopic fractionation you observe, if statistically significant, were essentially due to kinetic effects?

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