f Unconformities in the Cenomanian-Turonian Carbonate Platform of the Middle East: Diagenetic Patterns and Impact on Reservoir Properties Examples from Mishrif and Natih Formations

The onset of obduction in Oman during Early to Middle Turonian caused a broad doming and exposure of the carbonate platform in the eastern part of the southern Arabian Gulf. The associated unconformity is characterised everywhere by exposure and erosion. Locally karstification, coal and paleosoil deposits occurred on top of the Mishrif Formation in Qatar and UAE, and deep incisions developed onto the stratigraphically equivalent Natih Formation in Oman.