Titlebook: Quaternary Period in Saudi Arabia; 1: Sedimentological, Saad S. Al-Sayari (Chairman),Josef Georg Zötl (Pro Book 1978 Springer-Verlag/Wien 1

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As Sulb PlateauLike the Shedgum Plateau, As Sulb Plateau forms part of As Summan Plateau, a vast, undulating area consisting of continental clastics of Miocene and Pliocene age (Fig. 2, No. 28).

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Climatic Changes During the Quaternary PeriodThe main factors producing climatic changes are altering conditions of precipitation (precipitation depth, intensity, kind of precipitation, annual distribution) and of air temperature. Other factors such as humidity, wind conditions, etc. are partly dependent on the main factors or else hard to ascertain.