الفهرس 
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Abstract
This research represents an integrative study of the Nile Delta-Mediterranean conjunction zone in terms of its deep-seated structures and tectonic setting. Besides, its surficial deformational pattern (subsidence or uplift) and potential risks from rising the Mediterranean Sea levels. The influence and relationship between the Nile Delta’s deep-seated structures and its surficial deformation pattern were investigated and tested.The delineation of continental-oceanic crustal boundary or transition zone is important for plate tectonic reconstructions and for estimating heatflow through time, which has implications for hydrocarbon maturation and reservoir quality. An integrative gravity model constrained with seismic data was generated to estimate DTM across the Nile Delta region and its offshore.The model is based on inversion of satellite gravity data (GOCO06s model)applying the modified Bott’s method with the Tikhonov regularization followed by 2D forward gravity modeling using the IGMAS+ software package. The modeled spatial variations in crustal thicknesses across the Nile Delta and its offshore together with available geologic and subsurface data were used to constrain the geological and tectonic setting of the study area, demark the Nile Delta transition zone along the North African continental passive margin, and address location of the hinge zone and its approximate width.