الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The Miocene depositional history of the Nile Delta is dominated by fluvial-deltaic, marginal marine and marine shelf sedimentation. It exhibits radical lateral facies changes according to the tectonic setting. Different attributions in age assignments characterise the Miocene Nile Delta due to the lack of strong vertical facies changes. The study area is located in the Nile Delta Egypt, the studied boreholes are arranged from south to north as follows: Tanta-1, El-Fayrouz Well, Rommana-1X and Rosetta-7, using integrating lithologic, biostratigraphic, gamma-ray log and benthic foraminiferal biofacies.
Seven formations covering the studied succession, from older to younger they are: Tineh, Qantara, Moghra, Sidi Salem, Qawasim, Rosetta and Abu Madi, formations. One hundred and eleven foraminiferal species were identified; of these, sixty five are planktonic allow subdivision of the Miocene Nile Delta succession into twelve planktonic biozones and forty six are benthic species used in foraminiferal paleobathymetric. The planktonic foraminifera allow subdivision of the Miocene Nile Delta succession into 12 zones (M1 - M10 and M13 - M14 zones).
Eight 3rd Nile Delta Miocene sequences bounded by eight major sequence boundaries, was identified and can be correlated within and outside Egypt based upon planktonic foraminifera biostratigraphy. These boundaries in the Nile Delta are controlled by either eustatic processes and/or tectonic events coincide with the Chattian/Aquitanian (SB1) and Aquitanian/Burdigalian (SB2), intra-Burdigalian (SB3), Burdigalian/Langian (SB4), Langian/Serravallian (SB5), Serravallian/Tortonian (SB6) Tortonian/Messinian (SB7) and intra-Messinian (SB8). Each identified sequence contains a transgressive system tract bounded above by a marine-flooding surface followed by an upper highstand system tract bounded above by a sequence boundary. The lowstand systems tract is the main gas reservoir in the Nile Delta and recorded only below the Tortonian/Messinian and intra-Messinian sequence boundaries, which are marked by deep incisions and truncations. Variable patterns in the timing of regional deposition and erosion indicate different tectonic and sedimentary regimes, which encompass progressively greater periods of time southward in the Nile Delta.