Depositional environments and sequence architecture of the Raha and Abu Qada formations (Cenomanian-Turonian), west central Sinai, Egypt

► The studied rocks were deposited on a ramp. ► Four third-order depositional sequences were recorded. ► The main factor controlling distribution of facies is change in the relative sea level. ► The oceanic anoxic event is placed around the Cenomanian-Turonian boundary.