**Acknowledgements**

The authors would like to thank the National Science Foundation of China (NSFC: 92162213). They express their gratitude to the group of School of Earth Science and Resources, Chang'an University for their support during this research. Refaey El-Wardany is very grateful to Prof. Ibrahem Abu El-Leil, Prof. Basem Zohair, Prof. Yonggang Feng, Dr. Amr Abdelnasser, in addition, the Geology Department Faculty of Science Al-Azhar University (Assiut Branch) and the China Scholarship Council, for help and supporting his research. The editor and the anonymous reviewers are acknowledged for their many insightful comments and suggestions that improved many interpretations.
