A preliminary study on the spatial distribution characteristics and causes of strontium-rich mineral water in the Dushan complex
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Abstract:
The mountain rocks in the Dushan Complex are Sr-rich granite with a much higher Sr level than those in other crustal lithospheres in eastern China. That presents a high potential for developing Sr-rich mineral water. In this study, 6 groups of rock samples, together with 30 groups of water samples, were collected. Combining with the existing data, the Sr contents in three different types of underground water were obtained, which are the Quaternary pore water, the meshed bedrock fissure water in weathered zones and the tectonic bedrock fissure water. On the basis of preliminary understanding for the distribution characteristics of Sr-rich mineral water in the Dushan Mountain region, the causes for the Sr-rich mineral water were investigated. Our results showed that the Sr content of the rocks in the studied area ranges from 988 to 1 950 μg/g. In the horizontal direction, those in both the pore water and the meshed bedrock fissure water in weathered zones show high values in the west but low ones in the east, and high ones in the south but low ones in the north. Furthermore, both types of water meet the standard for Sr-rich mineral water in the western areas. In the vertical direction, the Sr content shows the lowest value in pore water (the average value is 0.707 mg/L), middle value in the meshed bedrock fissure water in weathered zones (the average value is 1.415 mg/L) and the highest value in the tectonic bedrock fissure water (the average value is 8.331 mg/L). It was thought that the widely-developed Sr-rich granite in this region provides physical sources for the formation of Sr-rich mineral water. The continuous dissolution of Sr during underground water runoff is the internal mechanism. In addition, the hydraulic interrelations may exist between the three vertical aquifers, leading a continuous accumulation of the Sr level during infiltration.
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ZHANG Jun-de. 1995. Physical feature and forming mechanism of potable natural mineral water in Hebei. Jour Geol & Min Res North China, 10(4):430-436. DU Shu-chang, YANG Xiu-zhi. 1995. Quality evaluation of potable natural mineral water of Guozhangzi, Qinglong Autonomous County, Hebei Province. Jour Geol & Min Res North China, 10(4):471-476. ZHONG Ming, WU Qing, et al. 2010. Research on natural mineral water quality characteristics and development prospect in Qinhuangdao City. Journal of EMCC, 20(5):30-32. WU Ming-qian, ZHAO Guo-chun, et al. 2014. Geochemical characteristics of the Dushan Complex and their geological significance. Geology in China, 41(1):108-121. Institute of Geological Survey in China University of Geosciences (Beijing). 2002. China uni-ver?sity of geosciences (Beijing) 1/250 000 regional survey report of Qinglong, Hebei Province. Bureau of Geology and Mineral Deposits of Hebei Province. 1989. Regional geology of Hebei Province, Beijing municipality and Tianjin Municipality. Beijing: Geological Publishing House, 1-714. LIU Hong-tao, SUN Shi-hua, et al. 2002. The mesozoic high-Sr granitoids in the northern marginal region of North China Craton geochemistry and source region. Acta Petrologica Sinica, 18(3):257-274. ZHANG Qiu-sheng, YANG Zhen-sheng, et al. 1991. The archean high-grade metamorphic geology and gold deposits in Jinchangyu area of eastern Hebei. Beijing: Geological Publishing House, 220-320. YAN Ming-chi, CHI Qing-hua. 2005. The chemical compositions of the continental crust and rocks in the eastern of China. Beijing: Science Press, 1-171. LUO Zhen-kuan, MIAO Lai-cheng, et al. 2003. SHRIMP U-Pb zircon dating of the Dushan granitic batholith and related granite- porphyry dyke, eastern Hebei Province, China, and their geological significance. Geochimica, 32(2):173-180. ZHANG De-quan, SUN Gui-ying. 1988. Granites of eastern China. Wuhan: China University of Geosciences Press, 1-311.
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