Zhenyu Zhang, China University of Geosciences, Wuhan, China; Institute of Geophysical and Geochemical Exploration, CAGS, Langfang, China, Xiangyun Hu, Hubei Subsurface Multi-scale Imaging Key Lab, Institute of Geophysics & Geomatics, China University of Geosciences (Wuhan), Wuhan, China, Hui Fang, The Institute of Geophysical and Geochemical Exploration ( IGGE ), China, Langfang, China and Dayong Wang, Dalian University of Technology, School of Energy and Power Engineering, Dalian, China