Lithofacies, cyclicity, diagenesis and depositional environments of the Upper Cenomanian, El Heiz formation, Bahariya Oasis, Western Desert, Egypt

Lithofacies, diagenesis and cyclicity of the ‘Lower Member’ of the Khuff Formation (Late Permian), Al Qasim Province, Saudi Arabia

“…So the replaced calcite from dolostones has blocky extensions. This has been observed by many authors (James, 1972;Khalifa and Abu El-Hasan, 1993). As the dedolomitization process takes place in the subaerial zone it can be used to recognise sea level fall and sequence boundaries (Khalifa et al, 2003).…”

Sedimentology of the fluvial and fluvio-marine facies of the Bahariya Formation (Early Cenomanian), Bahariya Oasis, Western Desert, Egypt

“…This depression is one of the most important areas in the Western Desert, and it has attracted the attention of many geologists especially in the last four decades, with the beginning of the land reclamation and discovery of ironore deposits in three localities (El Gedida, Ghorabi and El Harra). More detailed studies of this area include work published by Said (1962), El Akkad and Issawi (1963), El Bassyouny (1972, Issawi (1972), Khalifa (1977), Soliman and El Badry (1980), Franks (1982), Dominik (1985), Khalifa and Abu El-Hassan (1993), Soliman and Khalifa (1993), Khalifa et al (2002Khalifa et al ( , 2003, and Catuneanu et al (2006).…”

“…He mentioned that the Bahariya Formation consists of sandstones with several intercalations of ferruginous layers, and termed the lowermost sandstone beds as the 'Dinosaur bed' at Gabal El Dist. The base of the Bahariya Formation is unexposed, while its top shows an unconformable relationship with the overlying Upper Cenomanian El Heiz Formation (Khalifa and Abu El-Hassan, 1993) in most of the western and eastern escarpments. In the northern parts, it shows an unconformable contact with the overlying Lower-Middle Eocene Naqb Formation.…”

Effects of Parent Material Weathering on Mineralogical and Chemical Properties of Some Soils in the Bahariya Oasis, Western Desert, Egypt

“…He mentioned that the Bahariya formation consists of sandstones with several intercalations of ferruginous layers, and termed the lowermost sandstone beds as the Dinosaur bed at Gabal El Dist. The base of the Bahariya Formation is unexposed, while its top shows and unconformable relationship with the overlying Upper Cenomanian El Heiz Formation (Khalifa and Abu El-Hassan, 1993) in most of the western and eastern escarpments. In the northern parts, it shows an unconformable contact with the overlying lower Middle Eocene Naqb Formation.…”

“…More detailed studies include works published by Said (1962), El Akkad and Issawi (1963). El Bassyouny (1972,1978), Issawi (1972), Khalifa (1977), Soliman and El Badry (1980), Franks (1982), Dominik (1985), Khalifa and Abu El-Hassan (1993), Soliman and Khalifa (1993). Khalifa et al, (2002Khalifa et al, ( , 2003.…”