Mineralogy of modern evaporites of the Taloe lake tract (Republic of Khakassia)

The object of the study is modern evaporitic sediments of the Taloe Lake tract. It is located on the territory of the South Minusinsk depression and represents an intercostal cavity with two temporary reservoirs - the Western and the Eastern. The urgency of the work is due to the fact that Taloe Lake belongs to a group of steppe reservoirs, which in turn are characterized by a specific set of mineral species that depend on the composition of the water supplying the reservoir. The investigations made it possible to diagnose the total mineral composition of bottom sediments, as a result of which two mineral associations were identified: evaporite (combines the mineral phases that can be obtained by evaporating brines, groundwater and surface waters) and terrigenous (includes mineral species insoluble in water). Also, a sequence of precipitation of water-soluble minerals from brines was established, through the study of the relationships of mineral phases. At the same time, the mineral composition of the bottom sediments depends directly on the hydrogeochemical type of water.