Deciphering Jurassic Intrashelf Basin Complexity through Integrated Sequence Stratigraphy and Sedimentology across the Arabian Plate Region

Summary This research aims to predict the distribution of economically important units in the subsurface of the Arabian Plate. A regional sequence stratigraphic framework was constructed using outcrop analogues and subsurface data from over 120 wells. The study revealed a complex interplay of depositional processes, including fluvial, marginal marine, and carbonate shelf environments. The results show that intrashelf basins formed during late transgression, with clinoforms developed at shallow slope angles. The quality of source rocks was negatively impacted by deeper intrashelf settings and increased oceanic influence. The study highlights the significance of siliciclastic influx and coastal nutrient sources in controlling anoxia development and organic matter preservation. The findings provide a better understanding of the platform evolution and facies distribution, which can help mitigate risks in interpreting subsurface data and improve the accuracy of predictions.