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Manuscript ID : IJES-1908-1370 (R8) Visit : 178 Page: 181 - 195

10.30495/ijes.2021.682865

Article Type: Original Research

Biostratigraphy, Paleoecology, Microfacies and Depositional environment of the Asmari formation (Oligocene-Early Miocene) in Karanj oil field, SW Iran

Subject Areas : Mineralogy

Behzad Saeedi Razavi 1

1 - Standard Research Institute, Engineering and Technical Faculty, Construction and Mineral Department, Karaj, Iran

Received: 2019-09-16 Accepted : 2021-05-27 Published : 2021-07-01

Keywords: Paleoecology, Chattian, Asmari Formation, Burdigalian, Biostratigraphy,

Abstract :

Core data analysis of one well from the Karanj oil field, southwestern Iran, allowed us to precise the biostratigraphy, microfacies and paleoecology of the Asmari Formation. Analysis of thin section from this cored well permitted identification of 28 genera and 20 species of benthic and planktic foraminifera respectively. Subsequently four benthic foraminiferal assemblage biozones were identified, as follows: (1) Lepidocyclina-Operculina-Ditrupa Assemblage zone, (2) Archaias asmaricus-Archaias hensoni-Miogypsinoides complanatus Assemblage zone, (3) Miogypsina-Peneroplis farsensis–Elphidium sp. 14 Assemblage zone and (4) Borelis melo curdica-Borelis melo melo Assemblage zone; indicating an Oligocene (Rupelian-Chattian) to early Miocene (Aquitanian to Early Burdigalian) age for the Asmari Formation. Microfacial study of depositional textures led to characterizing 12 microfacies types, indicating environments in five different settings: restricted lagoon, open lagoon, shoal, slope, and basin mostly in the upper Asmari Formation. These sediments had been deposited under 3 different salinity levels (from 34 to more than 50 psu) in an environment ranging from aphotic to oligophotic and to euphotic zones, and under oligotrophic to eutrophic conditions from the Chattian to the Burdigalian on a carbonate platform (homoclinal ramp). In the studied well, the Asmari Formation had been deposited in a marine environment with normal salinity during the Rupelian-Chattian interval and in a marine environment with high salinity during the Aquitanian to the Burdigalian times.

References:


  1. Adams RM, Rosenzweig C, Peart RM, Ritchie JT, McCarl BA, Glyer JD, Curry RB, Jones JW, Boote KJ, Allen LH (1990) Global climate change and U.S. agriculture, Nature 345: 219-224.
    2.
  2. Adams TD, Bourgeois F (1967) Asmari biostratigraphy geology and exploration division. Rep. No. 1074. National Iranian Oil Company, 37p.
    3.
  3. Alavi M (2004) Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland evolution, American Journal of Science 304: 1-20.
    4.
  4. Baratian M, Arian MA, Yazdi A (2020) Petrology and Petrogenesis of Siah Kooh Volcanic Rocks in the Eastern Alborz. Geosaberes 11: 349-363
    5.
  5. Barattolo F, Bassi D, Romero R (2007) Upper Eocene larger foraminiferal-coralline algal facies from the Klokova Mountain (south continental Greece), Facies 53: 361-375.
    6.
  6. Bassi D, Hottinger L, Nebelsick H (2007) Larger Foraminifera from the Upper Oligocene of the Venetian area, northeast Italy, Palaeontology 5(4): 845-868.
    7.
  7. Beavington-Penney SJ, Racey A (2004) Ecology of extant nummulitids and other larger benthic foraminifera, applications in paleoenvironmental analysis, Earth Science Review, 67(3-4): 219-265.
    8.
  8. Brandano M, Frezza V, Tomassetti L, Pedley M (2009) Facies analysis and paleoenvironmental interpretation of the Late Oligocene Attard Member (Lower Coralline Limestone Formation), Malta, Palaeogeography, Palaeoclimatology, Palaeoecology 274: 54-63.
    9.
  9. Brandano M, Morsilli M, Vannucci G, Parente M, Bosellini F, Vicens G (2010) Rhodolith-rich lithofacies of the Porto Badisco Calcarenites (upper Chattian, Salento, southern Italy), Journal Geoscience 129(1): 119–131.
    10.
  10. Burchette TP, Wright VP (1992) Carbonate ramp depositional systems, Sedimentary Geology 79: 3–57. 
    11.
  11. D Orbigny A (1826) tableau methodigue de la classe des cephalopodes, Annales des Sciences Naturelles 7: 245-314.
    12.
  12. Defrance MJL (1822) Lenticulites, in Cuvier, M.F. (ed), Dictionnaire des Sciences naturelles, 25(laa-leo) Levrault F.G., Strasbourg et Le Normant, Paris: 452–453.
    13.
  13. Dunham RJ (1962) Classification of carbonate rocks according to depositional texture, American Association of Petroleum Geologist Bulletin 1: 108- 121.
    14.
  14. Ehrenberg SN, Pickard NAH, Laursen GV, Monibi S, Mossadegh ZK, Svana TA, Aqrawi AAM, Thirlwall JMMMF (2007) Strontium isotope stratigraphy of the Asmari Formation (Oligocene-Lower Miocene), SW Iran, Journal of Petroleum Geology 30: 107-128.
    15.
  15. Embry AF, Klovan JE (1971) A late Devonian reef tract on northeastern banks island, NWT. Bulletin Can Petroleum Geology 19: 730–781.
    16.
  16. Falcon NL (1974) Southern Iran: Zagros Mountains. – In: Spencer, A. (Ed.): Mesozoic–Cenozoic Orogenic Belts. Geological Society, London, Special Publications 41: 199-211.
    17.
  17. Flügel E (2004) Microfacies of carbonate rocks. Berlin Heidelberg, Springer-Verlag 976p.
    18.
  18. Flügel E (2010) Microfacies of carbonate rocks, analysis, interpretation and application, Berlin (Springer) 976 p.
    19.
  19. Geel T (2000) Recognition of stratigraphic sequence in carbonate platform and slope, empirical models based on microfacies analysis of Paleogene deposits in southeastern Spain, Palaeogeography, Palaeoclimatology, Palaeoecology 155(3): 211-238.
    20.
  20. Ghaffari M, Rashidnejad-Omran N, Dabiri R, Santos JF, Mata J, Buchs D, McDonald I, Appel P, Garbe-Schönberg D (2015) Interaction between felsic and mafic magmas in the Salmas intrusive complex, Northwestern Iran: Constraints from petrography and geochemistry, Journal of Asian Earth Sciences 111: 440-458.
    21.
  21. Greig DA (1935) Rotalia viennoti an important foraminiferal species from Asia Minor and Western Asia, Journal of Paleontology 9: 523-526.
    22.
  22. Hallock P (1981) Production of carbonate sediments by selected large benthic foraminifera on two Pacific coral reefs, Journal of Sedimentary Petrology 51: 467–474.
    23.
  23. 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 5: 8 - 13.
    24.
  24. Hallock P, Glenn EC (1986) Larger foraminifera: a tool for paleoenvironmental analysis of Cenozoic depositional facies, Palaios 1(1): 55–64.
    25.
  25. Hanzawa S (1930) Note on Foraminifera found in the lepidocyclina limestone from pabehusan, Science reports of the Tohoku Imperial University, 2nd series, Geology 14 (1): 85 – 95.
    26.
  26. Henson, FRS (1950) Middle Eastern Tertiary Peneroplidae (Foraminifera), with Remarks on the phylogeny and Taxonomy of the Family, Ph.D. thesis, Leiden (Wakefield), England, 70 p., (unpublished).
    27.
  27. Heydari E, Hassanzadeh J, Wade WJ, Ghazi AM (2003) Permian– Triassic boundary interval in the Abadeh section of Iran with implications for mass extinction, Part 1-Sedimentology, Paleogeography, Paleoclimatology, Paleoecology 193(3): 405–423.
    28.
  28. Hohenegger J (2000) Coenoclines of larger foraminifera, Micropaleontology 4(1): 127-151.
    29.
  29. Hohenegger J (2004) Depth coenoclines and environmental considerations of Western Pacific larger foraminifera, Journal of Foraminiferal Research 34: 9–33.
    30.
  30. 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 30: 239–253.
    31.
  31. James GA, Wynd JG (1965) Stratigraphic nomenclature of Iranian oil consortium agreement area, American Association of Petroleum Geologists Bulletin 49: 2182–2245.
    32.
  32. Jones and Desrochers (1992) Shallow platform carbonates, in Walker, R. G., and James, N. P., eds, Facies models: response to sea level change: Geological Association of Canada, Geotext 1: 277-301.
    33.
  33. Kakemem U, Adabi MH, Sadeghi A, Kazemzadeh MH (2016) Biostratigraphy, paleoecology, and paleoenvironmental reconstruction of the Asmari formation in Zagros basin, southwest Iran, Arabian Journal of Geosciences 9 (2): 120-135.
    34.
  34. Langer M, Hottinger L (2000) Biogeography of selected larger foraminifera. Micropaleontology 46: 57–86
    35.
  35. Laursen GV, Monibi S, Allan TL, Pickard NAH, Hosseiney A,Vincent B, Hamon Y, Van Buchem FSH, Moallemi A, Driullion G (2009) The Asmari Formation revisited: Changed stratigraphic allocation and new biozonation, First international petroleum conference and exhibition, Shiraz, Iran.
    36.
  36. Lee JJ (1990) Fine structure of the rhodophycean Porphyridium purpureum in situ in Peneroplis pertusus (Forskal) and P. acicularis (Batsch) and in axenic culture, Journal of Foraminiferal Research 20(2): 162-169.
    37.
  37. Lemoine P, Douville R (1904) Sur Le Genere Lepidocyclina Gumbel: Societe Geologique de France, Memoires Paleontologie, Paris 12, fasc. 2 (32), 5 – 41.
    38.
  38. Leutenegger S (1984) Symbiosis in benthic foraminifera, specificity and host adaptations, Journal of Foraminiferal Research 14(1): 16–35.
    39.
  39. Logan BW (1959) Environments, foraminiferal facies and sediments of Shark Bay, Western Australia: Unpublished PhD Thesis, The University of Western Australia, 287 p.
    40.
  40. Mahdavi M, Dabiri R, Hosseini ES (2015) Magmatic evolution and compositional characteristics of tertiary volcanic rocks associated with the Venarch manganese mineralization, SW Qom, central Iran. Earth Sciences Research Journal 19(2): 141-145.
    41.
  41. Mossadegh ZK, Haig DW, Allan T, Adabi MH, Sadeghi A (2009) Salinity changes during Late Oligocene to Early Miocene Asmari Formation deposition, Zagros Mountains, Iran, Palaeogeography, Palaeoclimatology, Palaeoecology 272: 17-36.
    42.
  42. Motiei H (1993) Stratigraphy of Zagros. Treatise on the Geology of Iran No. 1. Ministry of Mines and Metals, Geological Survey of Iran,Tehran.
    43.
  43. Mutti M, Hallok P (2003) Carbonate system along nutrient and temperature gradient: Some sedimentological and geochemical constrains, Earth-Science, 92: 465-475.
    44.
  44. Perrin C, Bosence DWJ, Rosen BR (1995) Quantitative approaches to palaeozonation and palaeobathymetry of corals and coralline algae in Cenozoic reefs. – In: Bosence, D.W.J. & Allison, P.A. (Eds.): Marine Palaeoenvironmental Analysis from Fossils, Journal of the Geological Society, London 83: 181-229.
    45.
  45. Pomar L (2001) Ecological control of sedimentary accomodation: Evolution from a carbonate ramp to rimmed shelf, Upper Miocene, Balearic Island, Palaeogeography, Palaeoclimatology, Palaeoecology 175: 249-272.
    46.
  46. Pomar L, Brandano M, Westphal H (2004) Environmental factors influencing skeletal grain sediment associations: a critical review of Miocene examples from the western Mediterranean, Sedimentology 51: 627-651.
    47.
  47. Read JF (1985) Carbonate platform facies models, American Association of Petroleum Geologists 69(1): 1–21.
    48.
  48. Reichel, M., 1937, Étude sur les Alveolines, Schweizerische Paläontologische Abhandlungen 59(3): 95–147.
    49.
  49. Romero J, Caus E, Rosell J (2002) A model for the palaeoenvironmental distribution of larger foraminifera based on late Middle Eocene deposits on the margin of the South Pyrenean basin (NE Spain), Palaeogeography, Palaeoclimatology, Palaeoecology 179(1): 43–56.
    50.
  50. Roozpeykar A, Maghfouri Moghaddam I (2016) Sequence biostratigraphy and paleoenvironmental reconstruction of the Oligocene early Miocene deposits of the Zagros Basin (Dehdasht area, South West Iran), Arabian Journal of Geosciences 9 (1): 77.
    51.
  51. Saeedi Razavi B, Keshavarz MT (2021) Biostratigraphy and facies analysis of the Asmari Formation in the north of Gachsaran (mish anticline), southwestern Iran. Carbonates and Evaporites Journal, in press.
    52.
  52. Schlumberger C (1893) Note sur les genres Trillina et Inderina, Bulletin de la Société Géologique de France 21: 118–123.
    53.
  53. Schuster F, Wielandt U (1999) Oligocene and Early Miocene coral faunas from Iran: palaeoecology and palaeobiogeography, International Journal of Earth Sciences, 88: 571-581.
    54.
  54. Sepehr M, Cosgrove JW (2004) Structural framework of the ZagrosFold-Thrust belt, Iran, Marine and Petroleum Geology 21(7): 829-843.
    55.
  55. Sherkati S, Letouzey J (2004) Variation of Structural Style and Basin Evolution in the Central Zagros (Izeh Zone and Dezful Embayment) Iran, Marin and Petroleum Geology 21: 535-554.
    56.
  56. Thomas NA (1950) The Asmari limestone of southwest Iran, In: 18th International Geological Congress, London 6: 35–55.
    57.
  57. Tucker ME (1985) Shallow marine carbonate facies and facies models, In: Brenchley P.J. and Williams B. P. J., Eds., Sedimentology, recent development and applied aspects, Geological Society of London, Special Publication 18: 139–161.
    58.
  58. Tucker ME, Wright VP (1990) Carbonate sedimentology, Oxford, Blackwell Scientific Publications, 425 p.
    59.
  59. Van Buchem FSP, Allan TL, Laursen GV, Lotfpour M, Moallemi A, Monibi M, Motiei H., Pickard NAH Tahmasbi AR, Vedrenne V, Vincent B (2010) Barremian-Lower Albian sequence-stratigraphy of southwest Iran (Gadvan, Dariyan and Kazhdumi formations) and its comparison with Oman, Qatar and the United Arab Emirates, GeoArabia Special Publication 4(2): 503-548.
    60.
  60. Vaziri-Moghaddam, H, Kimiagari, M, Teheri, A (2006)  Depositional environment and sequence stratigraphy of the Oligo-Miocene Asmari Formation in SW Iran, Facies, 52 (1): 41-51.
    61.
  61. Wilson JL (1975) Carbonate facies in geologic history. New York: Springer-Verlag, 471 p.
    62.
  62. Wilson MEJ, Vecsei A (2005) The apparent paradox of abundant foramol facies in lowlatitudes: their environmental significance and effect on platform development, Earth Science 69: 133-168.
    63.
  63. Wynd AG (1965) Biofacies of the Iranian oil consortium agreement Area. I.O.O.C. Report No. 1082 (Unpublished Paper).
    64.
  64. Yazdi A, Ashja Ardalan A, Emami MH, Dabiri R, Foudazi M (2019) Magmatic interactions as recorded in plagioclase phenocrysts of quaternary volcanics in SE Bam (SE Iran), Iranian Journal of Earth Sciences 11 (3): 215-225.
    65.

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