MINERAL SPRINGS
MINERAL SPRINGS, natural surfacing of mineral waters. M.s. are accompanied by the formation of sapropel. In the Bashkir Pre‑Urals, M.s. are associated with the carbonate and sulfate rocks of Perm, less frequently of Carbon; oxygen‑nitrogen brackish waters (1—10 g/l) of sulfate calcium, sulfate‑chloride, calcium‑sodium and chloride sodium compositions are predominant. They include M.s. Askynsky, Tereklinsky (Arkhangelsky Raion), Serebryany Klyuch (Askinsky Raion), Birsk Mineral Springs, Urzhum Mineral Springs, Solyoniy Klyuch (Birsky Raion), Tashastinsky (Gafuriysky Raion), Berkhomut, Krasny Klyuch, Krasnousolsk Mineral Springs, Talalayevskiye (Sterlitamaksky Raion), etc. The fractured zone of the Pre‑Urals foreland basin is associated with pressurized M.s. of radon (Kurgazak, Spring No.11 of Krasnousolsk M.s.) and hydrosulfuric (Kuselyarovskiye Sulphurous Springs, etc) waters. Assy artesian springs are known in the Bashkir (Southern) Urals. Assy, Krasnousolsk, Tanyp health resorts, etc function on the basis of a series of M.s.
