NIST RM 8301 boron isotopes in marine carbonate (simulated coral and foraminifera solutions) : inter-laboratory δ11B and trace element ratio value assignment

Autor: Chen-Feng You, Shuang Zhang, William R Gray, John R. Kucklick, Laura F. Robinson, Joseph A. Stewart, James W. B. Rae, Freya Hemsing, Thomas B Chalk, Arnaud Dapoigny, Russell D. Day, Philip Holdship, Michael J. Henehan, Eric Douville, Rachael Shuttleworth, Ana Kolevica, Marcus Gutjahr, Elaine M. Mawbey, Rosanna Greenop, Gavin L. Foster, Steven J. Christopher, Yen-Po Lin, Yu-Te Hsieh, Louise Bordier
Přispěvatelé: NERC, University of St Andrews. School of Earth & Environmental Sciences, University of St Andrews. St Andrews Isotope Geochemistry, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochimie Des Impacts (GEDI), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Géochrononologie Traceurs Archéométrie (GEOTRAC), ANR-13-BS06-0013,CARBORIC,Les isotopes du bore dans les carbonates comme proxy du paléo-pH océanique: les fondamentaux revisités(2013), ANR-13-BS06-0003,HAMOC,Dynamique des gyres Nord Atlantique et overturning de la Méditerranée au cours des changements climatiques de l'Holocène(2013), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Geostandards and Geoanalytical Research
Geostandards and Geoanalytical Research, 2021, 45, pp.77-96. ⟨10.1111/ggr.12363⟩
Geostandards and Geoanalytical Research, Wiley, 2021, 45, pp.77-96. ⟨10.1111/ggr.12363⟩
ISSN: 1639-4488
1751-908X
Popis: Boron isotopes and trace element content measurements were funded by: the French National Research Agency projects ANR CARBORIC (Grant No. ANR-13-BS06-0013-04) and ANR HAMOC (Grant No. ANR-13-BS06-0003-02) at LSCE; NERC NE/N003861/1 & NE/S001743/1 at Bristol; NERC NE/N011716/1 at the University of St Andrews. The boron isotopic (δ11BSRM951) and trace element composition of marine carbonates are key proxies for understanding carbon cycling (pH) and palaeoceanographic change. However, comparability of results between laboratories requires carbonate reference materials. Here we report results of an inter‐laboratory comparison study to both assign δ11BSRM951 and trace element compositions to new marine carbonate reference materials (RM), NIST RM 8301 (Coral) and NIST RM 8301 (Foram) and to assess analytical variability among laboratories. Non‐certified reference values and expanded 95% uncertainties for δ11BSRM951 in NIST RM 8301 (Coral) (+24.17‰ ± 0.18‰) and NIST RM 8301 (Foram) (+14.51‰ ± 0.17‰) solutions were assigned by consensus approach using inter‐laboratory data. Differences reported among laboratories were considerably smaller than some previous inter‐laboratory comparisons, yet discrepancies could still lead to large differences in calculated seawater pH. Similarly, variability in reported trace element information values among laboratories (e.g., Mg/Ca ± 5%) was often greater than analytical precision (% RSD) within a single laboratory (e.g., Mg/Ca < 2%). Such differences potentially alter proxy‐reconstructed seawater temperature by more than 2 °C. These now well‐characterised solutions are useful reference materials to help the palaeoceanographic community build a comprehensive view of past ocean changes. Publisher PDF
Databáze: OpenAIRE
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