OJG  Vol.4 No.1 , January 2014
Sedimentary Environments and Correlative Sequence Stratigraphy of Upper Cretaceous—Paleogene Succession in Shiraz Area, Fars, SW IRAN
ABSTRACT

Sequence stratigraphic evidences have been used in this research to investigate the stratigraphic correlation of cretaceous paleogene succession in Shiraz area, Fars, SW Iran. For this purpose, 4 stratigraphic sections have been chosen and provided. According to petrographic study and field evidences, 4 depositional sequences were identified including the Tarbur, Sachun and Jahrum formations in the east and the Gurpi, Pabadeh and Asmari formations in the west of study area. After identifying the boundaries and systems tract facies, it has been found that the mentioned formations have been deposited among the continuous/discontinuous boundaries in an equivalent manner. In this case, the purple shale (between the Gurpi and Pabdeh formations) could be considered equivalent to the upper part of the Sachun formation. From the point of Paleogeography, the plat-form sedimentary environment covered almost the whole area during the Oligo-Miocene age, so that the Asmari formation would have been deposited, which is marked by sharp contact as disconformity on Jahrum formation in the east of the basin and with continuous contact (C.C) on the Pabdeh formation in the west and southwest.


Cite this paper
M. Reza, "Sedimentary Environments and Correlative Sequence Stratigraphy of Upper Cretaceous—Paleogene Succession in Shiraz Area, Fars, SW IRAN," Open Journal of Geology, Vol. 4 No. 1, 2014, pp. 1-17. doi: 10.4236/ojg.2014.41001.
References
[1]   H. Motiei, “Stratigraphy of Zagros,” Treatise on the Geology of Iran, Geological Survey of Iran, 1993, 536p.

[2]   M. Alavi, “Tectonic of Zagros Orogenic Belt of Iran: New Data and Interpretations,” Tectonophysics, Vol. 229, No. 3-4, 1994, pp. 211-238. http://dx.doi.org/10.1016/0040-1951(94)90030-2

[3]   E. Flugel, “Microfacies of Carbonate Rocks, Analysis, Interpretation and Application,” Springer, Berlin, p. 976.

[4]   R. J. Dunham, “M1: Classification of Carbonate Rocks According to Their Depositional Texture,” AAPG, Tulsa, 1962, pp. 108-121.

[5]   M. Afghah and Kh. Khosrotehrani, “Lithostratigraphic Unit and Sedimentary Environment Studies of Tarbur Formation in and North East Area of Shiraz,” Journal of Islamic Azad University, Basic Sciences, Vol. 14, No. 53, 2014, pp. 4409-4439.

[6]   V. E. Darvin and M. Singer, “Well Logging for Earth Scientists,” Kindle Edition, 2013, Springer, Berlin, 708p.

[7]   NIOC. EXP, “Schlumberger,” Petrophysical Evaluation, Khuzestan Area, 2007, Full Set Logging.

[8]   R. M. Mahmoodabadi, Y. Lasemi and M. Afghah, “Sedimentary Environment and Sequence Stratigraphy of Pabdeh Formation in Shiraz Area,” Geosciences Scientific Quarterly Journal, Vol. 19, No. 73, 2010, pp. 139-146.

[9]   P. R. F. Vail, S. A. Audemard, D. Bowman, N. Eisner and C. Perezcruz, “The Stratigraphic Signatures of Tectonics, Eustasy and Sedimentology—An Overview,” In G. Einsele, W. Ricken and A. Seilasher, Eds., Cycles and Events in Stratigraphy, Springer-Verlag, Berlin, 1988, pp. 617-659.

[10]   J. C. Van Wagoner, H. W. Posamentier, R. M. Mitchem, P. R. Vail, J. F. Sarg, T. S. Lutit and J. Hardenbol, “An Overview of the Fundamentals of Sequence Stratigraphy and Key Definitions,” In: C. K. Wilgus, B. S. Hasting, C. G. St. C. Kendall, H. W. Posamentier, C. A. Ross and J. C. Van Wagoner, Eds., Sea Level Changes: An Integrated Approach, SEPM Special Publication, Tulsa, 1988, p. 42.

[11]   M. Nadjaf, A. Mahboubi, R. Moussavi-Harami and R. Mirzaee, “Depositional History and Sequence Stratigraphy of Outcropping Tertiary Carbonates in the Jahrum and Asmari Formations, Shiraz Area (SW Iran),” Journal of Petroleum Geology, Vol. 27, No. 2, 2004, pp. 179-190. http://dx.doi.org/10. 1111/j.1747-5457.2004.tb00052.x

[12]   D. Emery and K. Myers, “Sequence Stratigraphy,” Blackwell Science, Oxford, p. 297.

[13]   W. Schlager, “Carbonate Sedimentology and Sequence Stratigraphy,” SEPM, Tulsa, 2005, 200p. http://dx.doi.org/10.2110/csp.05.08

[14]   X. Q. Zhang, J. N. Lin, G. Li and Q. X. “Non-Marine Cretaceous-Paleogene Boundary Section at Datang of Nanxiong, Northern Guangdong,” Journal of Stratigraphy, Vol. 30, 2006, pp. 327-340. (in Chinese)

[15]   F. S. P. Van Buchem, T. L. Allan, G. V. Laursen, M. Lotfpour, A. Moallemi, S. Mobini, H. Motiei, N. A. H. Pickard, A. R. Tahmasbi, V. Vedrenne and B. Vincent, “Regional Stratigraphic Architecture and Reservoir Types of the Oligo-Miocene Deposits in the Dezful Embayment (Asmari and Pabdeh Formations) SW Iran,” Geological Society, London, Special Publications, Vol. 329, No. 1, 2010, pp. 219-263.

[16]   G. Keller, “Difining the Cretaceous-Tertiary Boundary: A Practical Guide and Return to First Principles,” SEPM (Society for Sedimentary Geology), Tulsa, 2011, pp. 23-42.

[17]   G. Li, X.-Q. Wan, H. Willems and D. J. Batten, “Revision of the Conchostracan Genus Tenuestheria from the Upper Cretaceous Lanxi Formation in Zhejiang and Its Biostratigraphic Significance in Southeast China,” Acta Geologica Sinica, Vol. 81, No. 6, 2007, pp. 925-930. http://dx.doi.org/10. 1111/j.1755-6724.2007.tb01015.x

[18]   G. Li, H. Hirano, D. J. Batten, X. Q. Wan, H. Willems and X. Q. Zhang, “Biostratigraphic Significance of Spinicaudatans from the Upper Cretaceous Nanxiong Group in Guangdong, South China,” Cretaceous Research, Vol. 31, No. 4, 2010, pp. 387-395. http://dx.doi.org/10.1016/j.cretres.2010. 05.003

[19]   R. Mirzaee Mahmoodabadi, “Depositional Environments and Sequence Stratigraphy of Paleocene—Eocene Sediments in Shiraz Area, Fars, Zagros, Iran,” Oral, IAS (International Association of Sedimentology), Manchester, 2013.

[20]   R. Mirzaee Mahmoodabadi, “Paleoecology and Quantitative Study of Bentonic and Pelanktonic Foraminifera of Pabdeh Formation Based on Sequence Stratigraphy Evidences in Shiraz, Fars, Zagros, Iran,” Poster, IAS (International Association of Sedimentology), Manchester, 2013.

 
 
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