| Autor: |
Böttcher, Michael E., Geprägs, Patrizia, Neubert, Nadja, von Allmen, Katja, Pretet, Chloé, Samankassou, Elias, Nägler, Thomas F. |
| Předmět: |
|
| Zdroj: |
Isotopes in Environmental & Health Studies; Sep2012, Vol. 48 Issue 3, p457-463, 7p, 1 Chart, 2 Graphs |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
