Control of Sequent Crustal Collisions on the Distribution of Orogenic Gold Mineralization in the Arabian Nubian Shield

Mohamed Samy Elhebiry1,2, Mohamed Sultan1 and Abdullah T Mohammad1,3, (1)Western Michigan University, Department of Geological and Environmental Sciences, Kalamazoo, United States, (2)Al-Azhar University, Geology Department, Cairo, Egypt, (3)Helwan University, Department of Geology, Cairo, Egypt