New Olivine Reference Material for In Situ Microanalysis

Batanova, Valentina G., Thompson, Jay M., Danyushevsky, Leonid V., Portnyagin, Maxim V., Garbe‐Schönberg, Dieter, Hauri, Erik, Kimura, Jun‐Ichi, Chang, Qing, Senda, Ryoko, Goemann, Karsten, Chauvel, Catherine, Campillo, Sylvain, Ionov, Dmitri and Sobolev, Alexander V. (2019) New Olivine Reference Material for In Situ Microanalysis Geostandards and Geoanalytical Research, 43 (3). pp. 453-473. DOI 10.1111/ggr.12266.

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Abstract

A new olivine reference material – MongOL Sh11‐2 – for in situ analysis has been prepared from a central portion of a large (20 cm × 20 cm × 10 cm) mantle peridotite xenolith from a ~ 0.5 Ma old basaltic breccia at Shavaryn‐Tsaram, Tariat region, central Mongolia. The xenolith is a fertile mantle lherzolite with minimal signs of alteration. Approximately 10 g of 0.5 to 2 mm gem quality olivine fragments were separated under binocular microscope and analysed by EPMA, LA‐ICP‐MS, SIMS and bulk analytical methods (ID ICP‐MS for Mg and Fe, XRF, ICP‐MS) for major, minor and trace elements at six institutions worldwide. The results show that the olivine fragments are sufficiently homogeneous with respect to major (Mg, Fe, Si) and minor and trace elements. Significant inhomogeneity was revealed only for phosphorus (homogeneity index of 12.4), whereas Li, Na, Al, Sc, Ti and Cr show minor inhomogeneity (homogeneity index of 1–2). The presence of some mineral and fluid‐melt micro‐inclusions may be responsible for the inconsistency in mass fractions obtained by in situ and bulk analytical methods for Al, Cu, Sr, Zr, Ga, Dy and Ho. Here we report reference and information values for twenty‐seven major, minor and trace elements.

Document Type: Article
Keywords: olivine, reference material, EPMA, LA‐ICP‐MS, SIMS
Research affiliation: JAMSTEC
Kiel University
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
Refereed: Yes
DOI etc.: 10.1111/ggr.12266
ISSN: 1639-4488
Date Deposited: 06 May 2019 11:41
Last Modified: 21 Aug 2019 11:18
URI: http://eprints.uni-kiel.de/id/eprint/46604

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