中国西南巴布地下河流域水体中溶解态硫酸根的双同位素分布及来源识别

Distribution and source identification of dissolved sulfate by dual isotopes in waters of the Babu subterranean river basin, SW China.

作者信息

Ren Kun, Pan Xiaodong, Zeng Jie, Jiao Youjun

机构信息

Institute of Karst Geology, Chinese Academy of Geological Sciences, No. 50, Qixing Road, Guilin, 541004 Guangxi People's Republic of China.

Karst Dynamics Laboratory, Ministry of Land and Resources, Guilin, 541004 Guangxi China.

出版信息

J Radioanal Nucl Chem. 2017;312(2):317-328. doi: 10.1007/s10967-017-5217-y. Epub 2017 Mar 16.

Sulfur and oxygen isotopes were employed to identify SO sources in surface water and groundwater in the Babu subterranean river basin (BSRB). Our study revealed SO enrichment in the BSRB waters compared with adjacent areas. The SO in some samples originated mainly from precipitation; in others, it was derived mainly from sulfide dissolution in coal seams or from gypsum dissolution. In the water at the subterranean river exit, 13% of SO originated from precipitation, 40% from sulfide oxidation in coal seams, and 47% from gypsum dissolution.