biostratigraphy and paleoecology of cretaceous/tertiary boundary in ...
biostratigraphy and paleoecology of cretaceous/tertiary boundary in ...
biostratigraphy and paleoecology of cretaceous/tertiary boundary in ...
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Chapter Two<br />
Lithostratigraphy<br />
Fig (2.14) Image show<strong>in</strong>g the graditional contact (change <strong>in</strong> color) between Shiranish<br />
Formation <strong>and</strong> Reddish to pale brown succession<br />
The Kolosh Formation overla<strong>in</strong>ed by the Gercus Formation, the contact is<br />
seems to be conformable by lithologic evidence <strong>of</strong> graditional change from<br />
dark grey organic rich sediments <strong>of</strong> Kolosh Formation to red, purple mudstone,<br />
s<strong>and</strong>stone, gritty marl, pebbly s<strong>and</strong>stone <strong>and</strong> conglomerates. The contact<br />
placed on the l<strong>in</strong>e where the sediment colour ma<strong>in</strong>ly began with red lithology.<br />
paleontologically there were no significant fossils recorded <strong>in</strong> this <strong>in</strong>terval <strong>of</strong><br />
lower most part <strong>of</strong> Gercus Formation <strong>in</strong> which six samples were studied for<br />
both foram<strong>in</strong>iferal <strong>and</strong> palynomorphs evidence.<br />
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