Abstract The present study deals with microfacies analysis, paleoecology and sequence stratigraphy of the Lower–Middle Eocene rocks in central Nile Valley west-central Sinai. Four rock units were marked (Minia, Darat, Samalut Maghagha formations). Eight facies belts interpreted including lagoon, back bank, main fore bank open marine outer deposited on a gently dipping platform ramp. This ramp m...