[1] Anhui Inst Geol, Hefei 230001, Anhui, Peoples R China
[2] Minist Land & Resources China, Lab Continental Dynam, Beijing 100037, Peoples R China
[3] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
[4] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[5] Nanjing Univ, Dept Geosci, Nanjing 210008, Peoples R China
[6] Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China