SEQUENCE STRATIGRAPHY, PALAEOGEOGRAPHY AND PETROLEUM PLAYS OF THE CENOMANIAN – TURONIAN SUCCESSION OF THE ARABIAN PLATE: AN UPDATED SYNTHESIS

In order to facilitate the search for new play concepts and exploration opportunities, a sequence stratigraphic synthesis of Cenomanian–Turonian interval Arabian Plate has been compiled. The is based on published datasets which have analysed within temporal framework constrained by biostratigraphy isotope stratigraphy. high resolution allows palaeogeography study area be mapped 3rd depositional sequences, relative influence eustacy tectonics basin development evaluated. This significantly improves prediction architecture morphology at scale entire tectonic plate. Conceptual models informed outcrop subsurface observations applied characterize intrashelf basins in settings that are either isolated from siliciclastics (symmetric model) or influenced (asymmetric model). application model across regional well log transects facilitates an understanding acts as important control generation suite gross environment (GDE) maps. These maps previously unprecedented during both periods sea level (maximum flooding surface highstand systems tract) low (lowstand tract). complemented isopachs reveal changes accommodation through time space. approach helps preserved distribution configuration petroleum elements. Shilaif (UAE), Natih (Oman) Sarvak (Iran) basins, condensed, organic-rich carbonate source rocks were deposited restricted, anoxic conditions. resulted differential aggradation platform transgressive tract. Grainy, rudist-debris –rich reservoir developed along margins progradation. Claystones overlying may form intraformational seals retrogradation shoreline associated with sea-level rise. By contrast Najaf (Iraq), there significant siliciclastic component sourced Shield. influx mixed carbonate-siliciclastic ramp system proximal, western margin basin, apparent absence intervals central succession. Grainy restricted eastern charged older underlying GDE record these elements basis screening. punctuated major mid-Turonian unconformity tectonostratigraphic boundary considerable geological economic significance. southern part Plate, this erosion profile subcrop potential. Identifying subtle traps challenging, but combining facies preservation limit each sequence, it possible identify areas where rudist-rich potential karst enhancement overlain claystone seal, high-grading trap