Krasnousolsky I mineral water deposit — is hydrogen-sulphide water. Krasnousolsky resort consists of 32 groups of artesian sulfide springs. They are located in two lines along the Usolka river’s right and left banks.
The right bank is ~ 0.5 km long. It unites 29 groups of springs of natural origin. On the Usolka river's left bank there are two hydrogen-sulphide springs. They appeared where wells used to be and uncovered outflowing waters (0.9 and 5.0 I/s) in the carbonate limestones. The flow rate of different springs is from 0.1 to 8-10 I/s. The total flow rate in the summer low-water level periods is estimated at 80 I/s. All springs waters are chloride sodium with 2.2-47.7 g/dm3 salinity, up to 70-80 mg\dm3H2S concentration, 9-13°C temperature, pH 6.9-7.4, Eh +160...-340 mV value. Micronutrient content (mg\dm3): Br up to 40.5, 1 up to 0.9, H3B03 up to 30.9, F up to 1.6. The salt composition is 80-95% NaCI. The other salts are: Na2S041-4%, MgS04 2-6%, CaS04 0.2-7% and Ca (HC03)21-8%. The water is infiltrating. The chemical composition is explained with carbonic rocks salt complex leaching. The hydrogen-sulphide is biogenic.
5/87 and 4-K wells mineral waters belong to 2.5.4 subgroup of Krasnousolsky type as per Methodological Instructions of the Ministry of Health of the Russian Federation No. 2000/34, Classification of mineral waters and therapeutic muds for certification purposes.
The material was prepared jointly with the Institute of Geology of the Ufa Federal Research Center of the Russian Academy of Sciences (RAS)
