Geochemistry of sodic waters in the Datong Intermountain Basin, Shanxi Province, Northwestern China

S. L. Shvartsev, Yanxing Wang

Результат исследований: Материалы для журналаСтатья

16 Цитирования (Scopus)

Выдержка

The paper presents a critical analysis of current concepts of the origin of sodic waters. The example of the Datong Basin with widespread sodic waters is employed to demonstrate that these waters typically have salinities of 0.6-4.5 g/l at pH of 7.8-8.8. It was determined that sodic waters are in equilibrium with calcite and clay minerals (montmorillonite and kaolinite) and, sometimes, also with analcime but are never in equilibrium with anorthite, albite, forsterite, microcline, and muscovite; i.e., the water-rock system is in equilibrium-unequilibrium state. The degree of evaporation concentration of salts is in places as high as a few tens. The complex analyses of conditions under which sodic waters are formed indicates that these waters are produced during a certain weathering stage of aluminosilicates, after the groundwaters have reached equilibrium with calcite. The time when this equilibrium can be reached is controlled by the intensity of the water exchange.

Язык оригиналаАнглийский
Страницы (с-по)1015-1026
Число страниц12
ЖурналGeochemistry International
Том44
Номер выпуска10
DOI
СостояниеОпубликовано - 1 окт 2006

Отпечаток

Geochemistry
geochemistry
China
Water
basin
water
Calcium Carbonate
calcite
analcime
microcline
Bentonite
anorthite
Kaolin
forsterite
critical analysis
aluminosilicate
water exchange
muscovite
kaolinite
province

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

Цитировать

Geochemistry of sodic waters in the Datong Intermountain Basin, Shanxi Province, Northwestern China. / Shvartsev, S. L.; Wang, Yanxing.

В: Geochemistry International, Том 44, № 10, 01.10.2006, стр. 1015-1026.

Результат исследований: Материалы для журналаСтатья

Shvartsev, S. L. ; Wang, Yanxing. / Geochemistry of sodic waters in the Datong Intermountain Basin, Shanxi Province, Northwestern China. В: Geochemistry International. 2006 ; Том 44, № 10. стр. 1015-1026.
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