TY - JOUR
T1 - Formation of the chemical composition of brackish and brine groundwater in the Tuva depression and surrounding areas
AU - Guseva, N. V.
AU - Kopylova, Yu G.
AU - Oidup, Ch K.
AU - Arakchaa, K. D.
AU - Rychkova, K. M.
AU - Khvashchevskaya, A. A.
AU - Ayunova, O. D.
PY - 2018/2
Y1 - 2018/2
N2 - Groundwater with high salinity is widespread in different climatic and geologic environments of the world. The formation of its chemical composition, however, is still debatable. The chemical composition of groundwater has been studied in 19 springs of the Tuva depression. In this area, hydrocarbonate, sulfate, and chloride waters with different cation compositions discharge. Their TDS value varies mainly from 1 to 6 g/L, reaching 315 g/L at only one locality. The chemical composition of the studied waters is reflective of the geostructural, hydrogeologic, landscape, and geochemical conditions. The main processes determining the chemical composition of the waters are their interaction with aluminosilicate minerals, dissolution of gypsum and halite, evaporation, and oxidation of sulfide minerals.
AB - Groundwater with high salinity is widespread in different climatic and geologic environments of the world. The formation of its chemical composition, however, is still debatable. The chemical composition of groundwater has been studied in 19 springs of the Tuva depression. In this area, hydrocarbonate, sulfate, and chloride waters with different cation compositions discharge. Their TDS value varies mainly from 1 to 6 g/L, reaching 315 g/L at only one locality. The chemical composition of the studied waters is reflective of the geostructural, hydrogeologic, landscape, and geochemical conditions. The main processes determining the chemical composition of the waters are their interaction with aluminosilicate minerals, dissolution of gypsum and halite, evaporation, and oxidation of sulfide minerals.
KW - brackish waters
KW - chemical composition
KW - continental salinization
KW - oxidation
KW - Tuva depression
KW - water-rock system
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U2 - 10.1016/j.rgg.2018.01.011
DO - 10.1016/j.rgg.2018.01.011
M3 - Article
AN - SCOPUS:85044784192
VL - 59
SP - 135
EP - 143
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 2
ER -