Scientific article
English

Barium isotope fractionation during experimental formation of the double carbonate BaMn[CO 3 ] 2 at ambient temperature

Publication date2012
Abstract

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.

Keywords
  • ambient temperature
  • barium-134
  • barium-137
  • barium-manganese(II) double carbonate
  • isotope effects
  • precipitation experiment
Citation (ISO format)
BÖTTCHER, Michael E. et al. Barium isotope fractionation during experimental formation of the double carbonate BaMn[CO 3 ] 2 at ambient temperature. In: Isotopes in environmental and health studies, 2012, p. 1–7. doi: 10.1080/10256016.2012.673489
Identifiers
Journal ISSN1025-6016
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Creation06/04/2012 12:35:00
First validation06/04/2012 12:35:00
Update time14/03/2023 17:22:23
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