Study on the formation of the high-fluorine environment of Yangshapao reservoir in the low plain of western Jilin province

The sources and the genesis of fluorine in the high fluorine environment of Yangshapao reservoir were analyzed by analyzing the regional geology, hydrogeology and soil characteristics in the low plain of western Jilin province. The results show that the fluorine-rich rocks from Daxing´an mountain, the fluorine-high soil in western Jilin province and the fluorine-containing strata formed in different time and genesis provide Yangshapao reservoir with the abundant sources of fluorine matter. Surface water and groundwater is the dynamic condition of high-fluorine environment in Yangshapao reservoir. The low and flat accumulated plain is the geographic environment for forming high-fluorine environment, The dry and semi-dry climate is the promoting condition for forming high fluorine environment. The high-fluorine environment of Yangshapao reservoir is formed in the interaction of the above various conditions.