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

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Chapter Two Lithostratigraphy Fig (2.10) Lithostratigraphic column of Qulka section in Dokan area showing lithologic characters. (Not to scale, the thickness shown on each portion of discussion) 36
Chapter Two Lithostratigraphy Fig (2. 11) Photo image (a) Showing the conglomerate bed of 1.5 m. thick, which is previously concluded to be the contact line of Cretaceous/Tertiary boundary in Dokan area by different authors. (b) Soft, friable and weathered intraformational conglomerate and pebbly sandstone from the lower part of Kolosh Formation, rich in reworked fossils of corals. gastropods, pelecypods, echinoids and brachiopods. 2.6 - Lithostratigraphy of Gali section (Smaquli area) The well exposed rocks of measured part of studied Gali section, in Smaquli Mountain area covered 15m of the upper most part of Shiranish Formation, then 74m of the reddish to pale brown succession (Shiranish- Tanjero transition unit), 72m Tanjero Formation and 49m Kolosh Formation and 10m of the lower most part of Gercus Formation. The detailed lithostratigraphic section is shown in Figs (2.12, 2.13, and 2.14). In the studied section, the reddish to pale brown succession (Shiranish- Tanjero transition unit) consists of 74m alternation of thin well bedded fossiliferous reddish to pale brown clay, marl alternate with thin reddish shale and papery shale intercalated by thin pale brown some time to pale grey calcareous marl of 5cm to 10cm thickness from the base to the top of this interval. Throughout the studied area the reddish to pale brown succession (Shiranish-Tanjero transition unit) is underlained by Shiranish Formation. It is likely forming a normal stratigraphic boundary of conformable gradational contact from bluish white marl and marly limestone of Shiranish Formation to the first appearance of reddish to pale brown clay or marl beds of the transitional unit Fig (2.14). 37
Page 1: BIOSTRATIGRAPHY AND PALEOECOLOGY OF
Page 4 and 5: IV Dedicated: To My Wife My Daughte
Page 6 and 7: VI Abstract The Cretaceous / Tertia
Page 8 and 9: VIII successions from the upper par
Page 10 and 11: 3.2.1.4- Pseudotextularia intermedi
Page 12 and 13: XII Table No. Title Page Table (3.1
Page 14 and 15: XIV Fig (4.11): Sedimentation rate
Page 16 and 17: Chapter one Introduction such as pl
Page 18 and 19: Chapter one Introduction Fig. (1.1)
Page 20 and 21: Chapter one Introduction lithologic
Page 22 and 23: Chapter one Introduction The Shiran
Page 24 and 25: Chapter one Introduction Abdel-Kire
Page 26 and 27: Chapter one Introduction The Kolosh
Page 28 and 29: Chapter one Introduction 1.4.2.2- R
Page 30 and 31: Chapter one Introduction a- Globotr
Page 32 and 33: Chapter one Introduction Fig (1, 6)
Page 34 and 35: Chapter one Introduction 4- Kato se
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Chapter Four Depositional Environme
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Chapter Five CHAPTER FIVE Conclusio
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Chapter Five Conclusion Paleontolog
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Chapter Five Conclusion (Late Maast
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Chapter Five Conclusion E- Kato sec
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Chapter Five Conclusion 16- The ter
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REFERENCES Abawi, T. S. Abdel-Kiree
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Northwestern Iraq. Rafidain Journal
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Bandy, O. L., 1967. Cretaceous plan
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limestone from the accretionary pri
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Cretaceous of the south Constantine
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James, G. A. and Wynd, J. G., 1965.
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Kassab, I. I. M., 1975c. Planktonic
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Liu, C. and Olsson, R. K., 1992. Ev
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Molina, E. Arenillas, I. and Arz, J
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Petters, S. W. EL-Nakhal, H. A. and
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Sissakian, V. K., 2000. Geological
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EXPLANATION OF THE PLATES PLATE -1
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PLATE -3 Scale bar represents magni
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PLATE -11 Scale bar represents magn
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PLATE -17 Figs 1- 3 Globotruncana a
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PLATE -19 Figs. 1 Gansserina wieden
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PLATE -21 Figs 1-2 Abathomphalus ma
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PLATE -23 Fig. 1 Globigerinelloides
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