Inter‐laboratory Characterisation of Apatite Reference Materials for Oxygen Isotope Analysis and Associated Methodological Considerations
Wudarska A, Wiedenbeck M, Słaby E, Lempart-Drozd M, Harris C, Joachimski M, Lécuyer C, MacLeod KG, Pack A, Vennemann T, Couffignal F, Feng D, Glodny J, Kusebauch C, Mayanna S, Rocholl A, Speir L, Sun Y, Wilke FD (2022)
Publication Type: Journal article, Original article
Publication year: 2022
Journal
Original Authors: Alicja Wudarska, Michael Wiedenbeck, Ewa Słaby, Małgorzata Lempart‐Drozd, Chris Harris, Michael M. Joachimski, Christophe Lécuyer, Kenneth G. MacLeod, Andreas Pack, Torsten Vennemann, Frédéric Couffignal, Dingsu Feng, Johannes Glodny, Christof Kusebauch, Sathish Mayanna, Alexander Rocholl, Laura Speir, Yadong Sun, Franziska D.H. Wilke
DOI: 10.1111/GGR.12416
Abstract
Here we report on the oxygen isotope compositions of four proposed apatite reference materials (chlorapatite MGMH#133648 and fluorapatite specimens MGMH#128441A, MZ-TH, and ES-MM). The samples were initially screened for 18O/16O homogeneity using secondary ion mass spectrometry (SIMS) followed by δ18O determinations in six gas source isotope ratio mass spectrometry laboratories (GS-IRMS) employing a variety of analytical protocols for determining either phosphate-bonded or “bulk” oxygen compositions. We also report preliminary δ17O and Δ’17O data, major and trace element compositions collected using EPMA as well as CO32- and OH- contents in the apatite structure assessed using thermogravimetric analysis and infrared spectroscopy. The repeatability of our SIMS measurements was better than ± 0.25 ‰ (1s) for all four materials that cover a wide range of 103δ18O values between +5.8 and +21.7. The GS-IRMS results show, however, a significant offset of 103δ18O values between the “phosphate” and “bulk” analyses that could not be correlated with chemical characteristics of the studied samples. Therefore, we provide two sets of working values specific to these two classes of analytical methodologies as well as current working values for SIMS data calibration.
Authors with CRIS profile
Michael Joachimski
Lehrstuhl für Geologie (Exogene Dynamik)
Yadong Sun
Lehrstuhl für Geologie (Exogene Dynamik)
Involved external institutions
Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum - GFZ
Germany (DE)
Polska Akademia Nauk (PAN) / Polish Academy of Sciences
Poland (PL)
Georg-August-Universität Göttingen
Germany (DE)
University of Missouri-Columbia (Mizzou)
United States (USA) (US)
Université de Lausanne (UNIL)
Switzerland (CH)
University of Cape Town (UCT)
South Africa (ZA)
Université Claude Bernard Lyon 1 (UCB)
France (FR)
Germany (DE)
Polska Akademia Nauk (PAN) / Polish Academy of Sciences
Poland (PL)
Georg-August-Universität Göttingen
Germany (DE)
University of Missouri-Columbia (Mizzou)
United States (USA) (US)
Université de Lausanne (UNIL)
Switzerland (CH)
University of Cape Town (UCT)
South Africa (ZA)
Université Claude Bernard Lyon 1 (UCB)
France (FR)
How to cite
APA:
Wudarska, A., Wiedenbeck, M., Słaby, E., Lempart-Drozd, M., Harris, C., Joachimski, M.,... Wilke, F.D. (2022). Inter‐laboratory Characterisation of Apatite Reference Materials for Oxygen Isotope Analysis and Associated Methodological Considerations. Geostandards and Geoanalytical Research. https://doi.org/10.1111/GGR.12416
MLA:
Wudarska, Alicja, et al. "Inter‐laboratory Characterisation of Apatite Reference Materials for Oxygen Isotope Analysis and Associated Methodological Considerations." Geostandards and Geoanalytical Research (2022).
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