Hydrogeochemical peculiarities of the composition of nitric thermal waters in the Baikal Rift Zone

Abstract

The chemical, gas, and isotopic compositions of nitric thermal waters in the Baikal Rift Zone are considered. It is shown that the behavior of sulfate and carbonate ions in hydrothermal systems is different, which indicates that they are of two different origins. The studied thermal waters are of five chemical types formed in different geologic conditions. Special attention is given to the genesis of hydrotherms, the geologic and geomorphologic conditions of their recharge, and their equilibrium with rocks. It has been established that most of chemical elements of the waters migrated from rocks, but a significant portion of them is bound by secondary minerals, which results in their deep differentiation, accumulation, or precipitation. Thus, the so-called redundant elements appear, which were earlier considered to be of mantle origin.

Original language	English
Pages (from-to)	495-508
Number of pages	14
Journal	Russian Geology and Geophysics
Volume	54
Issue number	5
DOIs	https://doi.org/10.1016/j.rgg.2013.04.002
Publication status	Published - 1 May 2013

Keywords

Baikal Rift Zone
Element origin
Formation of resources and chemical composition
Hydrogen and oxygen isotopic compositions of water
Nitric thermal waters

ASJC Scopus subject areas

Geophysics
Geology

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10.1016/j.rgg.2013.04.002

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title = "Hydrogeochemical peculiarities of the composition of nitric thermal waters in the Baikal Rift Zone",

abstract = "The chemical, gas, and isotopic compositions of nitric thermal waters in the Baikal Rift Zone are considered. It is shown that the behavior of sulfate and carbonate ions in hydrothermal systems is different, which indicates that they are of two different origins. The studied thermal waters are of five chemical types formed in different geologic conditions. Special attention is given to the genesis of hydrotherms, the geologic and geomorphologic conditions of their recharge, and their equilibrium with rocks. It has been established that most of chemical elements of the waters migrated from rocks, but a significant portion of them is bound by secondary minerals, which results in their deep differentiation, accumulation, or precipitation. Thus, the so-called redundant elements appear, which were earlier considered to be of mantle origin.",

keywords = "Baikal Rift Zone, Element origin, Formation of resources and chemical composition, Hydrogen and oxygen isotopic compositions of water, Nitric thermal waters",

author = "Plyusnin, {A. M.} and Zamana, {L. V.} and Shvartsev, {S. L.} and Tokarenko, {Olga Grigorievna} and Chernyavskii, {M. K.}",

year = "2013",

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language = "English",

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journal = "Russian Geology and Geophysics",

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T1 - Hydrogeochemical peculiarities of the composition of nitric thermal waters in the Baikal Rift Zone

AU - Plyusnin, A. M.

AU - Zamana, L. V.

AU - Shvartsev, S. L.

AU - Tokarenko, Olga Grigorievna

AU - Chernyavskii, M. K.

PY - 2013/5/1

Y1 - 2013/5/1

N2 - The chemical, gas, and isotopic compositions of nitric thermal waters in the Baikal Rift Zone are considered. It is shown that the behavior of sulfate and carbonate ions in hydrothermal systems is different, which indicates that they are of two different origins. The studied thermal waters are of five chemical types formed in different geologic conditions. Special attention is given to the genesis of hydrotherms, the geologic and geomorphologic conditions of their recharge, and their equilibrium with rocks. It has been established that most of chemical elements of the waters migrated from rocks, but a significant portion of them is bound by secondary minerals, which results in their deep differentiation, accumulation, or precipitation. Thus, the so-called redundant elements appear, which were earlier considered to be of mantle origin.

AB - The chemical, gas, and isotopic compositions of nitric thermal waters in the Baikal Rift Zone are considered. It is shown that the behavior of sulfate and carbonate ions in hydrothermal systems is different, which indicates that they are of two different origins. The studied thermal waters are of five chemical types formed in different geologic conditions. Special attention is given to the genesis of hydrotherms, the geologic and geomorphologic conditions of their recharge, and their equilibrium with rocks. It has been established that most of chemical elements of the waters migrated from rocks, but a significant portion of them is bound by secondary minerals, which results in their deep differentiation, accumulation, or precipitation. Thus, the so-called redundant elements appear, which were earlier considered to be of mantle origin.

KW - Baikal Rift Zone

KW - Element origin

KW - Formation of resources and chemical composition

KW - Hydrogen and oxygen isotopic compositions of water

KW - Nitric thermal waters

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