CHENG Wan
China University of Geosciences, Wuhan Hubei 430074, ChinaSUN Jiaying
First Exploration Team of Anhui Provincial Bureau of Coal Geology, Huainan Anhui 232052, ChinaZHANG Yi
First Exploration Team of Anhui Provincial Bureau of Coal Geology, Huainan Anhui 232052, ChinaLI Hua
First Exploration Team of Anhui Provincial Bureau of Coal Geology, Huainan Anhui 232052, ChinaSHI Yaojun
Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei Anhui 230094, China1.China University of Geosciences, Wuhan Hubei 430074, China;2.First Exploration Team of Anhui Provincial Bureau of Coal Geology, Huainan Anhui 232052, China;3.Exploration Research Institute, Anhui Provincial Bureau of Coal Geology, Hefei Anhui 230094, China
P634.7;TD74