الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Beni Suef Basin is a petroliferous rift basin straddling the River Nile, containing a thick Mesozoic–Paleogene succession. The basin is bisected into western sector (WON), and eastern sector (EON) by the River Nile. The Cretaceous sediments are stratigraphically subdivided from the base into Kharita, Bahariya, Abu Roash and Khoman formations, dating from Mid-Late Albian to Maastrichtian. According tothe structural architecture, deformation episodes and the tectono-stratigraphic subdivisions, the evolution of the western sector of Beni Suef Basin (WON) was accomplished through three successive tectonic episodes during the Cretaceous time, namely from the base (1) Early Cretaceous syn-rift tectonic episode, (2)Cenomanian-Early Coniacian post-rift tectonic episode and,(3) Senonian compressional (wrenching) tectonic episode. Accordingly, the Cretaceous Sediments of WON are subdivided intothree tectono-stratigraphic megasequences;each with definite boundaries, seismic facies characters, sedimentological architecture, and the forming depositional sequences. These tectono-stratigraphic megasequences include from the base; the Early Cretaceous syn-rift tectono-megasequence (TMS-I), Cenomanian-Early Coniacian post-rift tectono-megasequence (TMS-II) and Senonian compressional (wrenching) tectono-megasequence (TMS-III). The Early Cretaceous syn-rift tectono-megasequence was evolved associating the breakup of the Western Gondwana and the opening of the south and equatorial Atlantic Ocean during the Early Cretaceous. TMS-I encompasses the entire sediments of Kharita Formation and subdivided into two 3rd order depositional sequences; DSQ-1 and DSQ-2, mainly evolved as fluvial continental belts, interrupted by short-lived minor marine transgression in between.. The post-rift Cenomanian-Early Coniacian TMS-II encompasses the entire sediments of Bahariya Formation and the “G”, “F”, “E”, “D”, “C”, “B” as well as the basal part of “A” members of Abu Roash Formation. TMS-II is subdivided into five 3rd order depositional sequences; DSQ-3 to DSQ-7, developed as prograding platform under obviously oscillating sea level.The Senonian compressional (wrenching) tectono-megasequence (TMS-III) was developed associating the basin compression and wrenching accompanied the tectonic pulses of the Syrian Arc folding phase, influencing the northern part of Egypt since Cenomanian up to Middle Eocene. TMS-III includes the entire sediments of the Coniacian-Santonian upper parts of “A” Member, Abu Roash Formation and the Campanian Maastrichtian Khoman Formation. TMS-II is subdivided into one 3rd order depositional sequence; DSQ-8 and one 2nd order DSQ-9.
Economically, the shale-rich rock intervals in the Lower Kharita shale (TST-1) and the fossiliferous carbonates of the Abu Roash “F” (TST-4) members are considered as source rock.The sandstone intervals in the Upper Kharita sandstone, Abu Roash “G and E” members, Bahariya Formation are considered as reservoir rock.