1. Department of Earth and Planetary SciencesHarvard University Cambridge Massachusetts USA
2. School of Earth Sciences and EngineeringNanjing University Nanjing China
3. Earth Observatory of SingaporeNanyang Technological University Singapore
4. Asian School of the EnvironmentNanyang Technological University Singapore
5. Research Institute of Petroleum Exploration and Development, PetroChina Beijing China
6. School of Earth and Space SciencesPeking University Beijing China