Acknowledgements The authors would like to thank Southeast Hubei Geological Party and No.4 Geological Party of Hubei Province, and Hubei Geological Survey Institution for help during the field investigation. Chen Fukun, Li Sunrong, Feng Jiayi, Hu Jing, Qiu Yi, Tao Hua and Chen Zhenyu are thanked for their assistance during major and trace element and Sr-Nd isotope and SHRIMP analyses. Comments and discussion given by Wan Yusheng, Li Jianwei and Yang Zhusen were very helpful in improving and clarifying the manuscript. Two anonymous reviewers have provided detailed suggestions, critical comments, which led to considerable improvement and modification of this manuscript. This work was jointly supported by the National Natural Science Foundation of China (Grant Nos. 40434011 and 40402011), State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences (Grant Nos.GPM40504), State Key Laboratory of 0re Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences (Grant Nos. 200402), the Chinese Geological Survey Bureau (Grant Nos. 20031020081) and Postdoctoral Science Foundation.
The Jinniu Basin in southeast Hubei,located at the westernmost part of middle-lower val-ley of the Yangtze River,is one of the important vol-canic basins in East China. Volcanic rocks in the Jin-niu Basin are distribu...