biostratigraphy and paleoecology of cretaceous/tertiary boundary in ...

Chapter Four
Depositional Environmenment and Paleoecology
Sirwan sections and later one from P.hariaensis Zone to S. triloculinoides Zone
(Upper Late Maastrichtian-Lower Danian), the graphical line shows best-fit line
of 45 0 which indicate similar rate of depositions. If a best-fit line can be
constructed completely, the sections can be correlated, (Sirwan and Qulka) (Fig
4.10) which show the same rate of deposition in the same geologic time from
Late Maastrichtian- Early Danian. This technique provides a clear graphical
method which aids in the correlation or sequences.
Fig (4.8): Graphic correlation shows the depositional rate of sediment between Smaquli and Qulka
sections, Note: Change in the gradient in the early stage (dog-Leg) indicate highest rate of
deposition in Qulka section than Smaquli section
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