Journal article
Trace element analysis of high-Mg olivine by LA-ICP-MS – Characterization of natural olivine standards for matrix-matched calibration and application to mantle peridotites
Y Bussweiler, A Giuliani, A Greig, BA Kjarsgaard, D Petts, SE Jackson, N Barrett, Y Luo, DG Pearson
Chemical Geology | ELSEVIER | Published : 2019
Abstract
The trace element composition of olivine is becoming increasingly important in petrological studies due to the ubiquity of olivine in the Earth's upper mantle and in primitive magmatic rocks. The LA-ICP-MS method allows for the routine analysis of trace elements in olivine to sub-ppm levels, but a major drawback of this method is the lack of knowledge about possible downhole fractionation effects when non matrix-matched calibration is used. In this contribution, we show that matrix-matched (i.e., olivine-based) calibration is preferable for small laser spot sizes (<100 μm) due to significant laser-induced inter-element fractionation between olivine and commonly used silicate glass calibratio..
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Awarded by Horizon 2020 Framework Programme
Funding Acknowledgements
Gerhard Brey is thanked for providing the San Carlos olivine (SCGB). At the University of Alberta, Pedro Waterton is thanked for help with solution ICP-MS, Andrew Locock for assistance with EPMA, and Thomas Stachel for comments on an early version of the manuscript. At the University of Munster, Jasper Berndt-Gerdes and Beate Schmitte are thanked for assistance with LA-ICP-MS. At the University of Melbourne, Graham Hutchinson is thanked for performing EPMA and Emilie Lim for performing part of the LA-ICP-MS analyses. This study forms part of Y.B.'s PhD funded through D.G.P.'s Canada Excellence Research Chairs, Government of Canada. Y.B. is grateful for a University of Alberta Doctoral Recruitment Scholarship and a Society of Economic Geologists student research grant. At the University of Munster, Y.B. acknowledges support through a Marie Sklodowska-Curie Fellowship (Project ID 746518). AG received funding from the Australian Research Council through a Discovery Early Career Research Award (DECRA, grant number DE-150100009). We thank Sally Gibson and Emma Tomlinson for constructive review comments that greatly helped to improve the manuscript. Balz Kamber is thanked for additional comments and efficient editorial handling.