1. Department of Geophysics Chongqing University of Science and Technology Chongqing China
2. Department of Geography and Geology University of Salzburg Salzburg Austria
3. State Laboratory of Continental Dynamics, Department of Geology Northwest University Xi'an China
4. Department of Earth Sciences Chongqing University of Science and Technology Chongqing China
5. School of Earth Sciences Chengdu University of Technology Chengdu China