基金Acknowledgements The authors wish to thank Dr. K. Shibata of Niigata University, for isotopic analyses. We also thank Prof. Nakashima of Niigata University, for his valuable comments on the manuscript. We are deeply indebted to Prof. M.Bommari for his great help with sample analysis. We thank the Institute of Analytical Chemistry of Canada for major and trace-element analysis. Dr. A. Ahmadi of University of Sistan and Baluchestan, is also sincerely thanked for providing geological information on the study area. We also acknowledge Dr. SH. Varkouhi of Islamic Azad University, for reviewing and improving the manuscript.
