1. Geology Department, Faculty of Science, Minia University, Minia 61519, Egypt
2. Department of Geology, Faculty of Earth Sciences, Geography and Astronomy, University of Vienna, 1090 Vienna, Austria
3. Geology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
4. Geology and Geophysics Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
5. Core Laboratories, 6316 Windfern Road, Houston, TX 77040, USA