A COMPARATIVE STUDY OF HYDROCHEMISTRY ON GEOTHERMAL MINERAL WATERS IN XINZHOU BASIN AND BAIKAL RIFT ZONE
Wang Yanxin Sun Lianfa (China University of Geosciences,Wuhan 430074) Chen Delong Wang Yangeng (Water Conservatory Bureau of Xinzhou Prefecture) A.P.Khaustov G.M.Shpeyzer (Irkutsk State University ,Russia ) S. I. Lomonosov (Siberian Branch of Russian Academy of Science)
The geothermal mineral waters in the Xinzhou Basin and Baikal Rift Zone,located in tectonically similar environments,are N2-bearing siliceous thermal fluids. The hydrochemi-cal type of some thermal waters in Xinzhou ,i. e. SO4-Cl-Na-Ca water,is recognized for the first time on the East Asia continent. As compared with the mineral waters in the Baikal Rift Zone which have been applied in medical practice for many years,the relatively high contents of strontium, organic carbon and naphthenic acids of thermal waters in Xinzhou determine their relatively high value for their future medical application. The chemical compositions of the thermal waters in Baikal are variable and complex, which are closely related with the local geologic-hydrogeologic conditions.