1. Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, School of Earth and Space Sciences; Peking University; Beijing China
2. State Key Laboratory of Petroleum Resources and Prospecting, College of Geosciences; China University of Petroleum; Beijing China
3. Department of Geology; Saint Mary's University; Halifax Nova Scotia Canada
4. Natural Resources Canada, Geological Survey of Canada (Atlantic); Bedford Institute of Oceanography; Dartmouth Nova Scotia Canada