Contents Volume 9 The Required Parameters for Lithogeochemical Survey for Dispersion Aureoles of Main Metallic Deposits, Arid Eastern Desert, Egypt: Mahmoud M. Hassaan Petrogaphic Characterization of Dolomitic Rocks from El Hefuf Formation, Wadi Hennis, Farafra Oasis, Western Desert of Egypt: Mohamed I. El-Sayed Contribution to Sedimentary Nature of Eocene Sequence, Faiyum. Egypt: Sayed M. Ahmed Environmental Factors Influencing Textural Pattern and Mineralogical Composition of Coastal Beach Sediments of Ras El Behar - Ras Gemsa Area and Adjacent Islands, Northern Red Sea, Egypt: Ahmed A. Refaat and Mahmoud A. M. Aref Diagenetic Implications and Provenance of Pre-Cenomanian Sandstones,  Sheikh Attia Area, East-Central Sinai, Egypt:  Alaa M. Salem, Abd Elmoneim T. Abd Elhameed, Ibrahim Hassanein and Ahmed M. Fouda Diagenesis and Porosity Evolution of the Pre-Cenomanian Sandstones in Ras El Naqb Area, East-Central Sinai, Egypt: Alaa M. Salem Contribution to Depositional Environments of the Duwi Formation  (Upper Cretaceous) East Wadi Qena-Nile Valley, Egypt: Essam M. El Khoriby Contributions to Sedimentology of Cretaceous Rocks, Gabal Elminsherah  Area, North Central Sinai, Egypt: Omar A. Hegab, Adel A. Elhabab and Mohamed O. Ali Geochemistry and Radioelements Distribution in the Fresh and Altered Hammamat Sedimentary Rocks Along Wadi Belih, Southern Gabal  Um Tawat, North Eastern Desert, Egypt:  Mahmoud H. Shalaby and Ashraf F. Moharem Origin And Diagenesis or Gebel Maryut Carbonate Sand Ridge, West of Alexandria, Egypt: Abdel-moneim A. Mahmoud, Radwan A. Abul-Nasr and Yasser A. El Safori The Foreset Sediments of the Cenomanian El Gindi Delta at Abu Roash  Village, Egypt; Implications for Petroleum Exploration:  M. M. Elgamal, Mona A. El Bosraty and A. Ziko