HYDROGEOLOGICAL STRUCTURE OF BUZACHI ARTESIAN BASIN (WESTERN KAZAKHSTAN)

The largest structural element of the Buzachi structural-tectonic zone is the North Buzachi Uplift, which is limited from the south by the South Buzachi, and in the north and northeast by the Kultuk depressions. The Buzachi artesian basin is confined to the Cretaceous deposits of the Aptian–Turonian age. The physical properties and chemical composition of waters from productive strata are closely related to the conductive properties of sedimentary strata. The available hydrogeological materials for the area under consideration make it possible to single out two hydrogeological systems in the basin. The upper system is groundwater of Quaternary deposits. The lower system includes aquifers of the Jurassic, Lower Cretaceous and partly Upper Cretaceous (Cenomanian – Lower Turonian), and from above they are limited by Senonian and Paleogene beds with low conductive properties.