Browsing by Author "El Nakhal, Hamed A. [حامد احمد النخال]"

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    • Glaciations In The Arabian Peninsula 

      El Nakhal, Hamed A. [حامد احمد النخال] ( Qatar University , 1990 , Article)
      Glaciations affected the Arabian Peninsula three times. This was during the Late Ordovician, the Late Carboniferous-Early Permian, and the Pleistocene. Recorded evidence of Paleozoic glaciations in Arabia, includes tillites, ...

    • Khashm Formation, A New Lithostratigraphic Unit Within The Cretaceous Wasia Group Of Arabia 

      El Nakhal, Hamed A. [حامد احمد النخال] ( Qatar University , 1988 , Article)
      The Khashm Formation is introduced as a new lithostratigraphic unit to include the sandstones and shale interbeds which constitute the upper part of the Cretaceous Wasia Group (s. /.) outcropping in central Arabia. It ...

    • Rayn formation, a new name for the permian khuff formation (S. S.) In saudi arabia 

      El Nakhal, Hamed A. [حامد احمد النخال] ( Qatar University , 1991 , Article)
      The rank of the Khuff Formation (late Carboniferous-late Permian) in Saudi Arabia is raised to group status and it is divided into Unayzah (late Carboniferous-early Permian) and Rayn (middle-late Permian) Formations. The ...

    • Water Quality Of The Area West Of Karak City, Jordan 

      El Nakhal, Hamed A. [حامد احمد النخال]; Ashour, Mohamad M. ( Qatar University , 1986 , Article)
      The water quality of some wells, wadis and springs in the area west of Karak City has been evaluated for irrigation and domestic uses, by the application ofWilcox (1955) and Doneen (1961) methods, as well as the standards ...