Hydrogeochemical factors of formation of siliceous waters of the Pritashkent artesian basin

Abstract

The aim of our research was to assess the content of siliceous siliceous matter in the wells of the Tashkent mineral waters.
Research methods. The object of the study was well 1(5) of the Tashminvody site. The silicon content was assessed using a
mass spectrometer.
Research results. The results of the study showed an increased silicon content and they can be classified as siliceous mineral
waters, which already have their own specific features. In general, for the basin, hydrocarbonate-chloride-calcium-magnesium
waters are replaced by hydrocarbonate-sodium waters through a transition zone of hydrocarbonate-chloride-sodium waters
formed during the displacement of Cenomanian deposits with waters common in Paleogene, Senonian-Turonian and Lower
Cretaceous deposits.
Conclusions: Over the period of operation (70 years), the quality of thermal mineral waters has not undergone significant
changes. An exception is the zone of hydrocarbonate-sulphate-sodium waters, where the water quality has changed under the
influence of operation. Mineral water from wells No. 1 (5) in terms of silicic acid content refers to siliceous mineral drinking
medicinal table waters.