Biostratigraphy,Paleoecology and Depositional environment of Asmari Formation in oil field of Pazanan
Subject Areas :
1 - دانشگاه آزاد اسلامی تهران غرب
Keywords: Paleoecology , Biostratigraphy , Depositional environment , Asmari Formation , Pazanan,
Abstract :
Abstract Biostratigraphy and Paleoecology and depositional environments of Asmari Formation were studied in oil field of Pazanan (well No.121) .On base of studied done, the thickness of Asmari Formation is 334 meter and based on associated index benthic foraminifera three biozones have been selected that indicating a Late Oligocene (Chattian) to Early Miocene (Burdigalian ) age for the Asmari Formation in the studied area. In this section ,9 Microfacies were identified with different sub-environments(Open sea ,Enclosed Lagoon, Semi-enclosed Lagoon , Barrier)which were found to be deposited in a shallow marine carbonate platform in the form of a homoclinal ramp. Based on paleoecology , the lower Asmari Formation (age:chattian) by the occurrence of hyaline benthic foraminifera under normal salinity (psu35-40) in an environment ranging from aphotic to oligophotic under oligotrophic to mezotrophic condition and the middle and upper Asmari Formation by the occurrence of porcellanous benthic foraminifera ,under hypersalinity (psu45-50و more than 50 psu) in euphotic zone under eutrophic to hypertrophic conditions has been deposited in a shallow marine carbonate platform in the form of a homoclinal ramp.
منابع
-آیرمی،ع.،هاشمی،ح.،(1391)،بیوستراتیگرافی پالئواکولوژی سازند آسماری در چاههای 323 و 281 میدان نفتی مارون، جنوب غرب ایران ، پایان نامه دکتری ،دانشکده علوم پایه ، دانشگاه پیام نور تهران.
-امیری بختیار،ح.،ناصح،م.،(1382)، میکروفاسیس و محیط رسوبی مخزن آسماری میدان آغاجاری، گزارش شماره پ- 5278، شرکت ملی نفت ایران- مناطق نفت خیز جنوب.
-خسرو تهرانی،خ.،(1382)،رخساره های کربناته و شناخت آن ها در میکروسکوپ،انتشارات علمی دانشگاه آزاد اسلامی، واحد علوم تحقیقات تهران.
-رضوی،ب.،گنجی،ع.، ضرابی ،س.،(1399)،ریزرخساره ها، محیط رسوبی و پالئواکولوژی سازند آسماری در میدان نفتی کرنج، شمال فروافتادگی دزفول،جنوب غرب ایران پژوهشهاي دانش زمين، سال یازدهم، شماره43.
-رئیسی،ع.،لاسمی،ی.،(1379)،بررسی میکروفاسیسها محیط رسوبی و سکانس های سازند آسماری(الیگومیوسن) در فروافتادگی دزفول جنوبی: خلاصه مقالات چهارمین همایش انجمن زمین شناسی ایران، ص 179-181.
-کلانتری،ا.،(1371)،سنگ چینه ای و رخساره های
میکروسکوپی زاگرس، شرکت ملی نفت ایران.
-کیمیاگری،م.،(1384)،چینه نگاری زیستی رخساره های میکروسکوپی و چینه نگاری سکانسی سازند آسماری از تاقدیس
گورپی(لالی) تا کوه خویز(بهبهان): پایان نامه دکتری، دانشگاه اصفهان،220 صفحه
-ملکی خیمه سری،س.،(1378)،تفسیر محیط رسوبی سازند آسماری در حاشیه فروافتادگی دزفول: پایان نامه کارشناسی ارشد، دانشگاه شهید بهشتی،دانشکده علوم زمین.
-وزیری مقدم ،ح.،طاهری،ع.،(1388)،زیست چینه نگاری و پالئواکولوژی سازند آسماری در شرق دوگنبدان بر اساس روزنداران ، مجله علوم دانشگاه تهران ، دوره 35 ، شماره3 ، ص 23-32.
-Adams, T.D., Bourgeois, F.,(1967),Asmari Formation Biostratigraphy Geological and exploration Div.100C Report, No. 1074 May,1967(Unpub) .
-Baratollo, F., Bassi, D.,Romero, R.,(2007),Upper Eocene larger foraminiferal-coralline algal facies from Klokova Mountain , Facies, v. 53, pp361-375
-Beavington-Penney,S.J.,Racey,A.,(2004), Ecology of extant nummulitids and other larger benthic foraminifera, applications in Paleoenvironmental analysis: Earth Science Review, v. 67, pp219-265.
Brandano, M., Frezza, V., Tomassetti, L., Pedley, M.,(2009),Facies analysis and paleoenvironmental interpretation of the Late Oligocene, Palaeogeography, Palaeoclimatology, Palaeoecology, v.274, pp54-63.
-Brando, M., Corda, L.,(2002),Nutrients, sea level and tectonics: constrains for the facies architecture of a Miocene carbonate ramp in central Italy. Terra Nova 14, pp257-262.
-Burchette, T.P., Wright, V.P.,(1992),Carbonate ramp depositional systems: Sediment Geology, v. 79, pp3-57.
-Carozzi, A.V.,(1989), Carbonate rocks depositional model,Prentice Hall Newjersey, 604 p.
-Corda, L., Brandano, M.,(2003),Aphotic zone carbonate production on a Miocene ramp, Central Apennines,Italy: Sedimentary Geology, v. 161(1–2), pp55-70.
-Cosovic, V., Drobne, K., Moro, A.,(2004), Paleoenvironmental model for Eocene foraminiferal limestones of the Adriatic carbonate platform (Istrian Peninsula): Facies, v. 50, pp61-75.
-Dodd, J.R.,Stanton, R.J.,(1990),Palaeoecology concepts and applications, second edition. Chichester: John Wiley & Sons Ltd. xviii ,510 p.
-Dunham, R. J., (1962), Classification of carbonate rocks according to their depositional text- Douglas, J.A.1939: A summary of the paleontological succession in Iran and Iraq.100C Report No.622 (Unpub).
-Ehrenberg, S. N., Pickard, N. A. H., Laursen, G. V., Monibi, S., Mossadegh, K., Svana, T. A., Aqrawi, A. A. M., McArthur ,J. M.,Thirlwall, M. F., (2007), Strontium Isotope Stratigraphy of the Asmari Formation (Oligocene – Lower Miocene), SW Iran: Journal of Petroleum Geology, v. 30, no. 2, pp 107-128.
-Flugel, E.,(2004),Microfacies of Carbonate Rocks, Analysis, Interpretation and Applicatin. Springer-Verlag, Berlin, 976p.
-Flügel, E.,(2010),Microfacies analysis of limestone: interpretation and application: Springer-Verlag, Berlin, 976 p.
Geel, T.,(2000), Recognition of Stratigraphic sequences in carbonate platform and slope deposits: empirical Models based on Microfacies analysis of Paleogene deposits in southeastern Spain. Paleogeogr. Paleoclimatol. Paleoecol. 155, pp211-238.
-Hallock, P., (2001), Coral reefs in the 21st century: is the past the key to the future? In: Proceedings of the 10th Symposium on the Geology of the Bahamas and Other Carbonate Regions (Eds B.J. Greenstein and C.K. Carney): Gerace Research Center, San Salvador,Bahamas, pp8-13.
-Hallock, P.,Glenn, E.C., (1986),Larger foraminifera, a tool for paleoenvironmental analysis of Cenozoic carbonate facies: Palaios, v. 1, pp55-64.
-Hallock, P., (1988),The role of nutrient availability in bioerosion, Consequences to carbonate buildups: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 63, pp275-291.
-Hamedani, A., Torabi, H., Piller, W., Mandic, O., Steininger, F. F., Wielandt, U., Harzhauser, M., Nebelshck, L. H. d., Schuster, F.,(1997),Oligocene/Miocene sections from Zagrose Foreland basins of central Iran.–Abstr., 18. IAS Regional Meeting of Sedimentol, 155 – 156, Heidelberg.
-Heydari, E., Hassanzadeh, J., Wade, W.J. , Ghazi, A.M.,(2003), Permian– Triassic boundary interval in the Abadeh section of Iran with implications for mass extinction, Part 1-Sedimentology: Paleogeography, Paleoclimatology, Paleoecology, v. 193, pp405-423.
-Hottinger, L., (1997), Shallow benthic foraminiferal assemblages as signals for depth of their deposition and their limitations: Bulletin de la Societe Geologique de France, v. 168(4), pp491-505.
-Hottinger, L.,(1983), Processes determining the distribution of larger foraminifera in space and time, In: Meulenkamp, J.E. Eds., Reconstruction of marine paleoenvironments: Utrecht Micropaleontological Bulletin, v. 30, pp239-253.
-James, G. A. , Wynd, J. G.,(1965), Stratigraphic nomenclature of Iranian oil Consortium Agreement Area : Am. Assoc. Petrol. Geol. Bull. , v. 49 ,No.12 , pp2182 – 2245.
- Lasemi, Y. ,(1980),Carbonate microfacies and depositional environment of the Kinkaid Formation (Upper Mississipian ) of the Illinois Basin : Ph.D . thesis, University of Illinoids , U. S. A. 139P .
- Lasemi,Y. ,Carozzi, A.V., (1981), Carbonate microfacies and depositional environments of the Kinkaid Formation(Upper Mississippian) of the Illinois basin,U.S.A VIII congreso geologico Actas II:pp357-384.
-Laursen, G. V., Allen, T. L., Van Buchem, F. S. P. F., Lotfpour, M., Monibi, S., Motiei, H., Pickard, N. A. H., Tahmasebi, A. R., Vedrenne, V., Vincent, B., (2010), Regional stratigraphic architecture and reservoir type of the Oligo-Miocene deposit in the Dezful Embayment (Asmari and Pabdeh Formation) SW Iran, Journal of Geological Society, London, Special Publication, v. 329; pp219-263.
-Lee, J.J., (1990), Fine structure of the rhodophycean Porphyridium purpureum in situ in Peneroplis pertusus (Forskal) and P. acicularis (Batsch) and in axenic culture: Journal of ForaminiferalResearch, v. 20, pp162-169.
-Mehrnush,M.,Partoazar,H.,(1977),Selected Microfauna of Iran,Geological Survey of Iran ,Report no.3.
-Mossadegh, Z.K., Haig, D.W., Allan, T., Adabi, M.H., Sadeghi, A., (2009), Salinity changes during Late Oligocene to Early Miocene Asmari Formation deposition, Zagros Mountains,Iran:Palaeogeography, Palaeoclimatology, Palaeoecology, v. 272, pp17-36.
-Murray,J.W., (1973), Distribution and Ecology of Living Benthic Foraminiferids. Heinemann, London.
-Murray,J.W., (1976), A method of determining proximity of marginal seas to an ocean. Marine Geology 22, pp103-119.
-Mutti,M.,Hallok,P.,(2003),Carbonate system along nutrient and temperature gradient: Some
sedimentological and geochemical constraits: Earth-Science, v. 92, pp465- 475.
-Pomar,L.,( 2001), Ecological control of sedimentary accomodation: Evolution from a carbonate ramp to rimmed shelf,Upper Miocene, Balearic Island: Palaeogeography, Palaeoclimatology,Palaeoecology,v. 175, pp249-272.
-Rasser,M.W.,Scheibner,.,Mutti,M.,(2005),A paleoenvironmental standard section for Early Ilerdian tropical carbonate factories (Corbieres, France; Pyrenees, Spain): Facies, v. 51,pp217-232.
-Read,J.F.,(1985),Carbonate platform facies models: American Association of Petroleum Geologists Bulletin, v. 69, pp1-21.
-Renema,W.,(2006),Large benthic foraminifera from the deep photic zone of a mixed siliciclastic-carbonate shelf off East Kalimantan, Indonesia: Marine Micropaleontology, v. 58, pp73-82.
-Sampo,M.,(1969),Microfacies and Microfossile of the Zagros area,S.W.Iran(from Permian to Miocene)Int.Sedpet.Series,v.12,pp1-102.
-Seyrafian,A.,(2000),Microfacies and depositional environments of Asmari Formation at Dehdez area(a correlation across Central Zagros Basin) carbonate and evaporates, Report No.15,pp22-48
-Seyrafian, A.,(1981) ,Geological study of Siah Makan Field (Asmari Formation). National Oil Company , Rep. , p-3745 , (unpubl.) .
-Seyrafian,A.,Hamedani,A.,(1998) ,Microfacies and depositional environment of the Upper Asmari Formation (Burdigalian) , North-Central Zagros basin : Iran. N. Jb. Geol. Paleont. Abh. , v.210, No.2 , pp 129-141 .
-Seyrafian,A.,Hamedani,A.,(2003) ,Microfacies and Paleoenvironmental interpretation of the lower Asmari Formation (Oligocene) North- Central Zagros basin : Iran. N. Jb. Geol. Paleont. Mh. ,No. 3 , pp 164-167 .
-Tucker, M.E.,(1990), Geological background to carbonate sedimentation. In: Carbonate Sedimentology (Ed. By M.E. Tucker & V.P. Wright): Blackwell Scientifc Publications, Oxford, 482 p.
-Tucker,E.,Wright,P.,(1990),Depositional environments in the model of Tucker and Wright the regionon the ramp from normal.
- Thomas, A. N.,(1948) ,The Asmari Limestone of souehwast Iran . AIOC Report , No. 705(Unpub).
- Thomas, A. N.,(1950),The Asmari Limestone of Southwest Iran. Report.18th.Int.Geol.Cung
.London, pt.6, pp35-55.
-Vaziri-Moghaddam,H.,Kimiagari, M.,Taheri, A.,(2006), Depositional environment and sequence stratigraphy of the Oligo-Miocene Asmari Formation is SW Iran: Facies, v. 52, pp41-51.
-Wilson,J.L.,(1975),Carbonate facies ingeologic
history: New York, Springer- Verlag. 471 p.
-Wynd, J.G.,(1965) ,Biofacies of the Iranian oil consortium agreement area: Report 1082, unpublished.