Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences);
Ministry of Education;
Wuhan 430074;
China;
Key Laboratory of Isotope Geochronology and Geochemistry;
Guangzhou Institute of Geochemistry;
Chinese Academy of Sciences;
Guangzhou 510640;
China;
College of Geosciences;
Yangtze University;
Jingzhou 434023;
China;