[Zhang, Dinghao; Guo, Zhixin; Ding, Huadong; Wang, Zhengqing; Yu, Yan; He, Haiyang] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
[Chen, Yulin; Li, Ce; Liu, Zhongnan; Peng, Lujun] Geophys & Geochem Survey Inst Hunan Prov, Geol & Mineral Resources Ctr, Changsha 410000, Hunan, Peoples R China.
[Li, Ce] Nat Resources & Planning Bur Hanyuan Cty, Hanyuan Cty Land Space Planning Ctr, Yaan 625300, Sichuan, Peoples R China.
[Liu, Rentian] Univ South China, Explorat Engn Technol Ctr, Sch Resource Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.
[Pan, Junhua] Geophys & Geochem Survey Inst Hunan Prov, Changsha 410000, Hunan, Peoples R China.