Lithostratigraphy of Turonian-Santonian Unit in Sfaya Oil Field Northwest Iraq

The Stratigraphy and facies analyses of the unknown calcareous conglomerate unit, which has recently been brought up by bore holes in Sfaya oil field at north western Iraq, have been shown that this unit is of Turonian-Santonian age. Lithologically, conglomerate and embedded mudstone lenses at the western and centeral parts of the field represent the unit. On the other hand, it is represented by conglomerate, which is interfingering with lagoonal carbonates at the southeastern parts and by thick typical lagoonal carbonate facies, which overlay a tongue of conglomerate extending towards Ain-Zala oil field. Stratigraphic and facies analyses have indicated that this unit was deposited in a limited lagoonal environment.