Journal article

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
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
  • English
Classification
Geology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/302379
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