Abstract The present work is based mainly on core rock samples investigation of CSS-38 well, northwest Gulf Suez, Egypt. cores cover the whole South Gharib Formation (upper Miocene). stratigraphic succession Suez includes three mega units, recorded from old to young as pre-rift, syn-rift, and post-rift sediments. syn-rift sediments are Nukhul, Rudies, Kareem, Belayim Equivalent, Gharib, Zeit. r...