Predevelopment Study of Yangbajain Geothermal Field in Xizang (Tibet)

Abstract

Yangbajain geothermal field in Xizang. is a wet- steam field with a natural heat flow of 485 and subsurface temperature of C. physical data, the gross hydrological model of thermal system beneath Yangbajain is discussed. sodium bicarbonate-chloride water in shallow reservoir is a mixed water which is formed by mixing of deep sodium chloride water with melt water from elevated catchment zones. Sulfur Mine has undergone extensive hydrothermal alteration beneath which a high temperature heat source might which is an important area for hot water and steam production. situated 90 km northwest of Lhasa with elevation of 4260-4684 m. geochemical survey of this field during 1975-1976 and the results of prior surveys indicated that it a wet- steam field suitable for exploiting with a natural heat flow of 485 and subsurface temperatures of C.