Hydrogeochemical conditions of formation of dawsonite mineralization in the Berezovoyarka area, Kuznetsk Basin

S. L. Shvartsev

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The results of a geochemical study of groundwater in the area of dawsonite mineralization are reported. Sodic bicarbonate groundwater with pH 7.3-9.2 and a salinity of 0.4-7.2 g/l occurs in this area. The equilibrium of this water with dawsonite, calcite, gibbsite, kaolinite, montmorillonite, quartz, albite, anorthite, and analcime was investigated. A comprehensive consideration of groundwater composition and ore-forming properties of the water-rock system led to the conclusion that dawsonite is a product of aluminosilicate rock weathering. However, this mineral is formed only under conditions of delayed water exchange providing a longterm water-rock interaction and accumulation of sufficient amounts of Na+, OH-, HCO3 -, CO3 2-, and Al(OH) 4 - Al(OH)4 -.

Original languageEnglish
Pages (from-to)938-949
Number of pages12
JournalGeochemistry International
Issue number10
Publication statusPublished - Oct 2004


ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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