Tang, Qingguo
Mu, Xiaozhan
Duan, Xinhui
Srinivasakannan, C.
Liang, Jingsheng
Ding, Debao
Zhao, Zhigang
Funding for this research was provided by:
Geologic Survey Bureau of China (12120114077401)
Natural Science Foundation of China (51641403/E0418)
Natural Science Foundation of Hebei Province (E2015202312)
Article History
Received: 15 March 2017
Accepted: 3 December 2017
First Online: 16 January 2018