Barium isotope fractionation during experimental formation of the double carbonate BaMn[CO₃]₂ at ambient temperature
- Böttcher, Michael E. Geochemistry & Stable Isotope Geochemistry Group, Marine Geology Section, Leibniz Institute for Baltic Sea Research (IOW), Warnemünde, Germany
- 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
- 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
- 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
- Pretet, Chloé Section of Earth and Environmental Sciences, University of Geneva, Switzerland
- Samankassou, Elias Section of Earth and Environmental Sciences, University of Geneva, Switzerland
- Nägler, Thomas F. Institute of Geological Sciences, University of Bern, Switzerland
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30.03.2012
Published in:
- Isotopes in Environmental and Health Studies. - 2012, vol. 48, no. 3, p. 457-463
ambient temperature
barium 134
barium 137
barium manganese II double carbonate
isotope effects
precipitation experiment
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.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Géosciences
- Language
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- English
- Classification
- Geology
- License
- License undefined
- Identifiers
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- RERO DOC 29128
- DOI 10.1080/10256016.2012.673489
- Persistent URL
- https://folia.unifr.ch/unifr/documents/302379
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