1. Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education School of Earth and Space Sciences, Peking University Beijing 100871 China
2. Institute of Oil and Gas Peking University Beijing 100871 China
3. MARUM, Center for Marine Environmental Sciences University of Bremen 28334 Germany
4. Division of Geology and Mineral Resources Beijing Research Institute of Uranium Geology Beijing 100029 China