| Issue |
E3S Web Conf.
Volume 98, 2019
16th International Symposium on Water-Rock Interaction (WRI-16) and 13th International Symposium on Applied Isotope Geochemistry (1st IAGC International Conference)
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|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 5 | |
| Section | Geological Evolution of Water-Rock System: Mechanisms, Processes, Factors, Stages. The Session Dedicated to Stepan Shvartsev’s Memory | |
| DOI | https://doi.org/10.1051/e3sconf/20199801004 | |
| Published online | 07 June 2019 | |
REE in waters and bottom sediments of salt lakes of Southeastern Transbaikalia, Russia
Institute of Natural Resources, Ecology and Cryology SB RAS, 672014 Chita, Russia
* Corresponding author: svb_64@mail.ru
This paper presents our analysis of the distribution of REE in mineral chloride and soda lakes of Southeastern Transbaikalia. With increasing water salinity, it was determined that concentrations of dissolved HREE increased. The prevalence in absolute concentrations of MREE and HREE was observed in lakes with the development of bacterial processes (sulfate-reduction). A geochemical barrier for accumulating the LREE in the waters can be fluoro-carbonates. The saturation degree of fluorcarbonates in soda lakes can be several orders higher than in chloride lakes. Under oxidizing conditions Ce(OH)4 can be formed and, in a reducing environment – Ce(OH)3.
© The Authors, published by EDP Sciences, 2019
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