Distribution of Rare Earth Elements in Waters and Bottom Sediments of Mineralized Lakes in the Eastern Transbaikal Region (Russia)

被引：14

作者：

Borzenko, S. V. ^{[1
,2
]}

Zamana, L. V. ^{[1
]}

Zarubina, O. V. ^{[3
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Nat Resources Ecol & Cryol, Ul Nedorezova 16a, Chita 672014, Russia

[2] Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Siberian Branch, Vinogradov Inst Geochem, Ul Favorskogo 1, Irkutsk 664054, Russia

来源：

LITHOLOGY AND MINERAL RESOURCES | 2017年 / 52卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

D O I：

10.1134/S0024490217040022

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Contents of rare earth elements in waters and bottom sediments are maximum in the most mineralized soda lakes. It is shown that REE occur in waters mainly as carbonate (LnCO(3))(+) and oxyhydroxide LnO(2)H, LnO(+), (LnO(2))(-) complexes, whose activity in the La -> Lu series changes in opposite directions. It has been determined that increase of mineralization leads mainly to higher concentrations of the dissolved HREE. Prevalence of the absolute values of MREE and HREE is recorded in basins with the development of bacterial processes. Geochemical barrier for the accumulation of LREE in waters can be represented by fluorcarbonates, whose saturation degree in the soda lake waters can be several orders of magnitude higher than the solubility products (SP). Oxidative and reductive settings in lakes are favorable for the formation of Ce(OH)(4) and Ce(OH)(3), respectively.

引用

页码：263 / 277

页数：15

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