1. Chen S, Gui HR, Sun LH (2014) Quality evaluation and its controlling factors of groundwater from Wolonghu Mining area, northern Anhui province China. Nat Environ Pollut Technol 13(3):577–582
2. Craig H (1961) Isotopic variation in meteoric water. Science 133:1702–1703
3. Gui HR (2014) Geochemical characteristics of deep groundwater from sandstone aquifer in Qianyingzi mine, northern Anhui province China. Water Prac Technol 9(1):95–103
4. Gui HR, Chen LW (2007) Hydro-geochemistry evolution and discrimination of groundwater in mining district. Geological Publishing House, Beijing (in Chinese)
5. Gui HR, Chen LW, Song XM (2005) Drift features of oxygen and hydrogen stable isotopes in deep groundwater in mining area of northern Anhui. J Harbin inst Technol 37:111–114 (in Chinese)