Affiliation: | 1. Marine Geology Department, Faculty of Marine Science, King Abdulaziz University, P.O. Box 80207, Jeddah, 21589, Saudi Arabia 3. Geology Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt 2. Department of Geosciences, Graduate School of Science, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
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