Quartz Reference Materials for Oxygen Isotope Analysis by SIMS |
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| Authors: | Susanne Seitz Lukas P Baumgartner Anne‐Sophie Bouvier Benita Putlitz Torsten Vennemann |
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| Affiliation: | 1. Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland;2. Institute of Earth Surface Dynamics, University of Lausanne, Lausanne, Switzerland |
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| Abstract: | Two quartz samples of igneous origin, UNIL‐Q1 (Torres del Paine Intrusion, Chile) and BGI‐Q1 (Shandong province, China), were calibrated for their oxygen isotope composition for SIMS measurements. UNIL‐Q1 and BGI‐Q1 were evaluated for homogeneity using SIMS. Their reference δ18O values were determined by CO2 laser fluorination. The average δ18O value found for UNIL‐Q1 is 9.8 ± 0.06‰ and that for BGI‐Q1 is 7.7 ± 0.11‰ (1s). The intermediate measurement precision of SIMS oxygen isotope measurements was 0.32–0.41‰ (2s; UNIL‐Q1) and 0.40–0.48‰ (2s; BGI‐Q1), respectively. While less homogeneous in its oxygen isotope composition, BGI‐Q1 is also suitable for SIMS trace element measurements. |
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| Keywords: | oxygen isotopes
SIMS
quartz trace elements |
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