Composition of brines and mineral zoning of the bottom sediments of soda lakes in the Kulunda steppe (West Siberia)

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Composition of brines and mineral zoning of the bottom sediments of soda lakes in the Kulunda steppe (West Siberia). / Gas'kova, O. L.; Strakhovenko, V. D.; Ovdina, E. A.

In: Russian Geology and Geophysics, Vol. 58, No. 10, 01.10.2017, p. 1199-1210.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{67acf42fee3b44adbe6b47e27c39c729,

title = "Composition of brines and mineral zoning of the bottom sediments of soda lakes in the Kulunda steppe (West Siberia)",

abstract = "The diversity of the chemical composition of water in lakes, even those located at a few hundred meters from each other, has long attracted the attention of researchers. Detailed hydrochemical testing of two small soda lakes in the Kulunda steppe, located at 14 km from each other, provided answers to many questions. Although the lakes have pH > 9 and thus are assigned to the soda type, they differ in the composition of saline waters (HCO3-Cl-Na and Cl-SO4-Na-Mg) and bottom sediments. The indicator minerals in the sediments of the lake near Severka Village are pyrite, disordered Ca-smectites, and dolomite (the latter is strongly predominant, especially in the lower part of the sediment section). The minerals in the bottom sediments of the other lake are dominated by terrigenous quartz, feldspars, excess-Ca dolomite, and Mg-calcite, with the portion of carbonates increasing in the lower part of the section. Based on the reported facts, the assumption is made that the landscape position, the influence of groundwaters, and technogenic factors (land plowing) are the main reason for the differences between the two lake systems. The task is set to study biocoenoses and their effect on the diagenesis of the bottom sediments.",

keywords = "bottom sediments, Kulunda steppe, saline lakes, thermodynamic modeling, EVOLUTION, ALTAI, RUSSIA, COMMUNITIES, MODEL, REGION",

author = "Gas'kova, {O. L.} and Strakhovenko, {V. D.} and Ovdina, {E. A.}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = oct,

day = "1",

doi = "10.1016/j.rgg.2016.09.034",

language = "English",

volume = "58",

pages = "1199--1210",

journal = "Russian Geology and Geophysics",

issn = "1068-7971",

publisher = "Elsevier Science B.V.",

number = "10",

}

RIS

TY - JOUR

T1 - Composition of brines and mineral zoning of the bottom sediments of soda lakes in the Kulunda steppe (West Siberia)

AU - Gas'kova, O. L.

AU - Strakhovenko, V. D.

AU - Ovdina, E. A.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - The diversity of the chemical composition of water in lakes, even those located at a few hundred meters from each other, has long attracted the attention of researchers. Detailed hydrochemical testing of two small soda lakes in the Kulunda steppe, located at 14 km from each other, provided answers to many questions. Although the lakes have pH > 9 and thus are assigned to the soda type, they differ in the composition of saline waters (HCO3-Cl-Na and Cl-SO4-Na-Mg) and bottom sediments. The indicator minerals in the sediments of the lake near Severka Village are pyrite, disordered Ca-smectites, and dolomite (the latter is strongly predominant, especially in the lower part of the sediment section). The minerals in the bottom sediments of the other lake are dominated by terrigenous quartz, feldspars, excess-Ca dolomite, and Mg-calcite, with the portion of carbonates increasing in the lower part of the section. Based on the reported facts, the assumption is made that the landscape position, the influence of groundwaters, and technogenic factors (land plowing) are the main reason for the differences between the two lake systems. The task is set to study biocoenoses and their effect on the diagenesis of the bottom sediments.

AB - The diversity of the chemical composition of water in lakes, even those located at a few hundred meters from each other, has long attracted the attention of researchers. Detailed hydrochemical testing of two small soda lakes in the Kulunda steppe, located at 14 km from each other, provided answers to many questions. Although the lakes have pH > 9 and thus are assigned to the soda type, they differ in the composition of saline waters (HCO3-Cl-Na and Cl-SO4-Na-Mg) and bottom sediments. The indicator minerals in the sediments of the lake near Severka Village are pyrite, disordered Ca-smectites, and dolomite (the latter is strongly predominant, especially in the lower part of the sediment section). The minerals in the bottom sediments of the other lake are dominated by terrigenous quartz, feldspars, excess-Ca dolomite, and Mg-calcite, with the portion of carbonates increasing in the lower part of the section. Based on the reported facts, the assumption is made that the landscape position, the influence of groundwaters, and technogenic factors (land plowing) are the main reason for the differences between the two lake systems. The task is set to study biocoenoses and their effect on the diagenesis of the bottom sediments.

KW - bottom sediments

KW - Kulunda steppe

KW - saline lakes

KW - thermodynamic modeling

KW - EVOLUTION

KW - ALTAI

KW - RUSSIA

KW - COMMUNITIES

KW - MODEL

KW - REGION

UR - http://www.scopus.com/inward/record.url?scp=85042163881&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2016.09.034

DO - 10.1016/j.rgg.2016.09.034

M3 - Article

AN - SCOPUS:85042163881

VL - 58

SP - 1199

EP - 1210

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 10

ER -

ID: 9959346