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a conglomerte bed as a possible lower boundary - Professor Kamal ...

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CHAPTER ONE<br />

INTRODUCTION<br />

Scale<br />

20km<br />

Fig.1.3: The studied area divided to several grabens and horsts (Karim et al, 2007).<br />

1.4. Previous Studies<br />

According to Buday, (1980), the Qulqula Formation w<strong>as</strong> descri<strong>bed</strong> by Bolton in<br />

(1955), but a more precise definition and description w<strong>as</strong> given by the same author in<br />

(1958). The only available description on lithology, stratigraphy and age of the<br />

formation is that of the Buday (op. cit.) who mentioned that the type area lies in the<br />

6

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