1. College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
2. Institute of Geophysics, ETH Zurich, Zurich, Switzerland
3. Electrical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
4. College of Geoexploration Science and Technology, Jilin University, Changchun, China
5. Bureau of Economic Geology, The University of Texas at Austin, Austin, TX, USA