Barium isotope fractionation during experimental formation of the double carbonate BaMn[CO₃]₂ at ambient temperature
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Böttcher, Michael E.
Geochemistry & Stable Isotope Geochemistry Group, Marine Geology Section, Leibniz Institute for Baltic Sea Research (IOW), Warnemünde, Germany
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Geprägs, Patrizia
Geochemistry & Stable Isotope Geochemistry Group, Marine Geology Section, Leibniz Institute for Baltic Sea Research (IOW), Warnemünde, Germany - Geoscience Department, University of Bremen, Germany
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Neubert, Nadja
Geochemistry & Stable Isotope Geochemistry Group, Marine Geology Section, Leibniz Institute for Baltic Sea Research (IOW), Warnemünde, Germany - Institute of Geological Sciences, University of Bern, Switzerland - Institute for Mineralogy, University of Hannover, Germany
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Allmen, Katja von
Department of Geosciences, University of Fribourg, Switzerland - Section of Earth and Environmental Sciences, University of Geneva, Switzerland - B+G, Betontechnologie und Materialbewirtschaftung AG, Gümligen, Switzerland
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Pretet, Chloé
Section of Earth and Environmental Sciences, University of Geneva, Switzerland
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Samankassou, Elias
Section of Earth and Environmental Sciences, University of Geneva, Switzerland
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Nägler, Thomas F.
Institute of Geological Sciences, University of Bern, Switzerland
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Published in:
- Isotopes in Environmental and Health Studies. - 2012, vol. 48, no. 3, p. 457-463
English
In this study, we present the first experimental results for stable barium (Ba) isotope (¹³⁷Ba/¹³⁴Ba) fractionation during low-temperature formation of the anhydrous double carbonate BaMn[CO₃]₂. This investigation is part of an ongoing work on Ba fractionation in the natural barium cycle. Precipitation at a temperature of 21±1°C leads to an enrichment of the lighter Ba isotope described by an enrichment factor of−0.11±0.06‰ in the double carbonate than in an aqueous barium-manganese(II) chloride/sodium bicarbonate solution, which is within the range of previous reports for synthetic pure BaCO ₃ (witherite) formation.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Géosciences
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Language
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Classification
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Geology
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/302379
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