1. State Key Laboratory of Lithospheric Evolution; Institute of Geology and Geophysics, Chinese Academy of Sciences; Beijing 100029 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. Department of Geosciences; Western Michigan University; 1903 West Michigan Avenue Kalamazoo MI 49008 USA
4. Key Laboratory of Mineral Resources; Institute of Geology and Geophysics, Chinese Academy of Sciences; Beijing 100029 China
5. Department of Earth Science, School of Physical and Mathematical Sciences; University of Ghana; Legon-Accra Ghana