Contents Volume 11 

Comparative Study on Physico-Chemical Sedimentation of Chemical Components in Lakes Nasser and Bardawil Water, Egypt.
Mahmoud M. Hassaan 

Lithofacies Characteristics, Depositional Environment and Karstification of the Late Miocene (Messinian) Gypsum Deposits in the Northern Western Desert, Egypt.
Mahmoud A. M. Aref 

Sedimentary Nature of El Aawag Playa Southwestern Sinai, Egypt.
Hassan S. Hassan 

Stable Isotope Composition and Geochemistry of Some Late Pleistocene Travertine Deposits of Southern Egypt, and their Paleoenvironmental and Paleoclimatic Implications.
Mohamed A. Hamdan 

Geochemical Characterization of Source Rocks and Oil-Source Rock Correlation in Some Wells within South Umbarka Area, North Western Desert, Egypt.
Lobna M. Sharaf and Mohamed M. El Nady 

Petrographical and Geochemical Characteristics of Sadat Formation and its Depositional Environment, Sadat Area, West Gulf of Suez, Egypt.
Esmat A. Abou El-Anwar and Amr M. El- Gohary 

New Findings in the Eocene Stratigraphy of Gebel Ataqa - Northern Galala, North Eastern Desert, Egypt
Rifaat A. Osman 

Sequence Stratigraphy of the Subsurface Upper Cretaceous Tertiary Successions Northern Western Desert, Egypt.
Mohamed Khalil and Alaa Mostafa 

Cretaceous Sediments, Taba, Sinai, Egypt. A Petrophysical Study.
Mohamed M. Gadallah, Hamed A. Hamed, Gamal El-Ramisy and Oussama El-Badry

Contribution to the Stratigraphy of El Arag Depression, North Western Desert, Egypt.
Refaat A. Osman 

Suitability of Quaternary Sediments to Waste Landfills in Qena, Egypt.
Abbas M. Mansour 

Geochemical Mass Balance of Some Toxic Heavy Metals in Small Ecosystem, Egypt.
Ahmed A. Melegy 

Sedimentological and Gen-environmental Studies on Sharm El-Maya Bay, southern Sinai, Egypt.
Basel N. Shalaby, Ahmed 0. Mashaly, Yousria M.Sami and Maraim A. El- Hifnawi 

Tectonic Implications of Syndepositional Slumping Structures, Hammam Faraun District, Gulf of Suez, Sinai, Egypt.
Faris Khedr; Oussama El Badry; Graham Potts and Adel Sehim 

Occurrence and Genesis of Pyrite in El-Gedida Iron Mine, El-Bahariya Depression, Western Desert, Egypt.
A. A. Abdel-Monem, E. A. Korany, A. M. Yousssef 

Hydrogeochemical and Diagenetic Evolution of the Safa Sandstone Formation, North Sinai, Egypt.
Rifai, R.I. and El-Fiky, A.A 

Diagenetic Fabrics Of The Cenomanian-Turonian Carbonate Rocks In East Central Sinai, Egypt:
Ahmed M. Elshishtawy, Abd Elmoneim T. Abd Elhameed, Antar A. Abd Elwahab1 And Aziz M. Abu Shamal 

Erosion and Accretion Patterns Along the Coastal Zone of Northern Sinai, Egypt.
Mahmoud H. Ahmed, Ahmed Swedan, Tahani. H. El-Fatah and Abdelaal Hassan 

The Quaternary Sediments of Wadi Feiran and Wadi Khashbi, Southern Sinai, Egypt:
Aman A. Zalamah