贵州喀斯特地区乌江河水中铀的地球化学研究

HYDROGEOCHEMICAL CHARACTERISTICS OF U IN THE KARST RIVER, GUIZHOU, CHINA

通过对贵州喀斯特地区乌江流域河水中溶解态铀的地球化学研究 ,定量评估了乌江河水中溶解态铀的浓度及河水中溶解态铀进入长江的通量 ( 1 4 74× 1 0 2 mol/a)。结果表明 :乌江流域溶解态铀主要来源于碳酸盐岩风化 ,人类活动对乌江河水中溶解态铀的影响很小。

Based on the hydrogeochemical characteristics of U in the Wujiang River drainage of Guizhou Province, the author quantitatively evaluated the concentrations of dissolved U and the dissolved U flux to the Changjiang River (1474×10\+2 mol/a). The results showed that Wujiang River Drainage continent crust weathering is controlled by carbonate instead of the impact of human activities.\;