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Palaeoecology and microfacies correlation analysis of the Oligocene–Miocene Asmari formation, in the Gachsaran oil field, Dezful Embayment, Zagros Basin, Southwest Iran

  • Narges Monjezi
  • Mahnaz AmirshahkaramiEmail author
  • Hasan Amiri Bakhtiar
  • Mahnaz Parvaneh Nejad Shirazi
  • Akram Mirzaee
Original Article
  • 18 Downloads

Abstract

The Asmari formation is a thick carbonate succession of Oligocene–Miocene age in the Zagros Basin, southwest Iran. This research is focused on the microfacies analysis and paleoecology interpretation (based on the distribution of benthic foraminifera) of carbonate sediments of the Asmari formation. Three sections of this formation studied in the Gachsaran oil field (wells 25, 31 and 37), Dezful Embayment, Zagros Basin (southwest Iran). These sections are composed of limestone, dolomite, and limy dolomite. The Asmari formation has a conformable contact with the overlying (Gachsaran formation) and the underlying (Pabdeh formation) units. Based on petrologic studies, identification of larger foraminifera and facies analysis of the Asmari formation allowed the recognition of 14 facies types. There are grouped into four depositional environments which correspond to the inner, middle, outer ramp, and intrashelf basin. According to this study, deposition of the Asmari formation with association of hyaline, lamellar, perforate large, and flat foraminifera first started in the intrashelf basin environment during the Early Oligocene. In the latest Oligocene–earliest Miocene time, the Asmari platform margin prograded basinward, sediments of shallow water were deposited.

Keywords

Palaeoecology Microfacies Asmari formation Gachsaran oil field Dezful Embayment 

Notes

Acknowledgements

We wish to express our gratitude to Mr. Gholam Reza Chehardah Cherik (NISOC, Ahwaz, Iran) and Dr. Ahmad Abyat.

References

  1. Adams TD, Bourgeois F (1967) Asmari biostratigraphy geology and exploration division. Rep. No. 1074, National Iranian Oil Company, p 37Google Scholar
  2. Ahmadhadi F, Daniel JM, Azzizadeh M, Lacombe O (2008) Evidence for pre-folding vein development in the Oligo-Miocene Asmari formation in the Central Zagros Fold Belt, Iran. Tectonics 27:1–22CrossRefGoogle Scholar
  3. Al-Aasm IS, Ghazban F, Ranjbaran M (2009) Dolomitization and related fluid evolution in the Oligocene–Miocene Asmari formation, Gachsaran Area, SW Iran; petrographic and isotopic evidence. J Pet Geol 32(3):287–304CrossRefGoogle Scholar
  4. Alavi M (2004) Regional stratigraphy of the Zagros fold–thrust belt of Iran and its proforeland evolution. Am J Sci 304:1–20CrossRefGoogle Scholar
  5. Alsharhan AS, Narin AEM (1995) Tertiary of the Arabian Gulf: sedimentology and hydrocarbon potential. Palaeogeogr Palaeoclimatol Palaeoecol Elsevier 114:369–384CrossRefGoogle Scholar
  6. Amirshahkarami M (2008) Distribution of miogypsinoides in the Zagros Basin, Southwest of Iran. Hist Biol 20(3):175–184CrossRefGoogle Scholar
  7. Amirshahkarami M, Vaziri Moghaddam H, Taheri A (2007a) Sedimentary facies and sequence stratigraphy of the Asmari formation at Chaman-Bolbol, Zagros Basin, Iran. J Asian Earth Sci 29:947–959CrossRefGoogle Scholar
  8. Amirshahkarami M, Vaziri Moghaddam H, Taheri A (2007b) Paleoenvironmental model and sequence stratigraphy of the Asmari formation in southwest Iran. Hist Biol 19(2):173–183CrossRefGoogle Scholar
  9. Aqrawi AAM, Keramati M, Ehrenberg SN, Pickard N, Moallemi A, Svna T, Darke G, Dickson JAD, Oxtoby NH (2006) The origin of dolomite in the Asmari formation (Oligocene-lower Miocene), Dezful Embayment, SW Iran. J Pet Geol 29:381–402CrossRefGoogle Scholar
  10. Bahroudi H, Koyi A (2004) Tectono-sedimentary framework of the Gachsaran formation in the Zagros Foreland Basin. Mar Pet Geol 21:1295–1310CrossRefGoogle Scholar
  11. Barattolo F, Bassi D, Romero R (2007) Upper Eocene larger foraminiferal-coralline algal facies from the Klokova Mountain (south continental Greece). Facies 53(3):361–375CrossRefGoogle Scholar
  12. Berberian M (1976) Contribution to the seismotectonics of Iran (part II). Geological Survey of Iran, p 39Google Scholar
  13. Berberian M, King GCP (1981) Towards a paleogeography and tectonic evolution of Iran. Can J Earth Sci 18:210–265CrossRefGoogle Scholar
  14. Bignot G (1985) Elements of Micropaleontology: London. Graham and Totman Limited, London, p 217Google Scholar
  15. Brandano M, Corda L (2002) Nutrients, sea level and tectonics constraints for the facies architecture of a Miocene carbonate ramp in central Italy. Terra Nova 14(4):257–262CrossRefGoogle Scholar
  16. Burchette TP, Wright VP (1992) Carbonate ramp depositional systems. Sed Geol 79(1–4):3–57CrossRefGoogle Scholar
  17. Busk HG, Mayo HT (1918) Some notes on the geology of the Persian Oilfields. J Inst Pet Technol 5:5–26Google Scholar
  18. Buxton MWN, Pedley HM (1989) A standardized model for Tethyan Tertiary carbonate ramps. J Geol Soc Lond 146:746–748CrossRefGoogle Scholar
  19. Corda L, Brandano M (2003) Aphotic zone carbonate production on a Miocene ramp, Central Apennines, Italy. Sediment Geol 161(1–2):55–70CrossRefGoogle Scholar
  20. Cosovic V, Drobne K, Moro A (2004) Paleoenvironmental model for Eocene foraminiferal limestones of the Adriatic carbonate platform (Istrian Peninsula). Facies 50(1):61–75CrossRefGoogle Scholar
  21. Dunham RJ (1962) Classification of carbonate rocks according to depositional texture. Am Assoc Pet Geol Bull 1:108–121Google Scholar
  22. Eames FE, Banner FT, Blow WH, Clarke WJ (1962) Fundamentals of mid-tertiary stratigraphical correlation. Cambridge University Press, Cambridge, p 163Google Scholar
  23. Ehrenberg SN, Pickard NAH, Laursen GV, Monibi S, Mossadegh ZK, Svånå TA, Aqrawi AAM, Thirlwall JMMMF (2007) Strontium isotope stratigraphy of the Asmari formation (Oligocene–Lower Miocene), SW Iran. J Pet Geol 30:107–128CrossRefGoogle Scholar
  24. Fakhari MD, Axen GJ, Horton BK, Hassanzadeh J, Amini A (2008) Revised age of proximal deposits in the Zagros foreland basin and implications for Cenozoic evolution of the High Zagros. Tectonophysics 451:170–185CrossRefGoogle Scholar
  25. Falcon NL (1961) Major earth-Xexturing in the Zagros Mountain of southwest Iran. J Geol Soc Lond 117:367–376CrossRefGoogle Scholar
  26. Farhoudi G (1978) A comparison of Zagros Geology to Island Arcs. J Geol 86:323–334CrossRefGoogle Scholar
  27. Flügel E (1982) Microfacies analysis of limestones. Springer, Berlin, p 633CrossRefGoogle Scholar
  28. Flügel E (2004) Microfacies of carbonate rocks. Analysis, interpretation and application. Springer-Verlag, New York, p 976Google Scholar
  29. Geel T (2000) Recognition of stratigraphic sequence in carbonate platform and slope: empirical models based on microfacies analysis of Paleogene deposits in southeastern Spain. Palaeogeogr Palaeoclimatol Palaeoecol 155(3):211–238CrossRefGoogle Scholar
  30. Gregg JM, Shelton KL (1990) Dolomitization and dolomite neomorphism in the back facies of the Bonneterre and Davies formation (Cambrian), southeastern Missouri. J Sediment Petrol 60:549–562Google Scholar
  31. Hakimzadeh S, Seyrafian A (2008) Late Oligocene–Early Miocene benthic foraminifera and biostratigraphy of the Asmari formation, south Yasuj, north-central Zagros basin, Iran. Carbonates Evaporites 23(1):1–10CrossRefGoogle Scholar
  32. Hallock P (1979) Trends in test shape with depth in large symbiont-bearing foraminifera. J Foramin Res 9(1):61–69CrossRefGoogle Scholar
  33. Hallock P (1981) Light dependence in Amphistegina. J Foramin Res 11(1):40–46CrossRefGoogle Scholar
  34. Hallock P (1988) The role of nutrient availability in bioerosion: consequences to carbonate buildups. Palaeogeogr Palaeoclimatol Palaeoecol 63:275–291CrossRefGoogle Scholar
  35. Hallock P (1999) Symbiont bearing foraminifera. In: Sen Gupta BK (ed) Modern Foraminifera. Kluwer, Dordrecht, pp 123–139CrossRefGoogle Scholar
  36. Hallock P, Glenn EC (1986) Larger foraminifera: a tool for paleoenvironmental analysis of Cenozoic depositional facies. Palaios 1(1):55–64CrossRefGoogle Scholar
  37. Hansen HJ, Buchardet B (1977) Depth distribution of Amphistegina in the Gulf of Elat, Israel. Utrecht Micropaleontol Bull 15:205–224Google Scholar
  38. Heydari E (2008) Tectonics versus eustatic control on supersequences of the Zagros Mountains of Iran. Tectonophysics 45:56–70CrossRefGoogle Scholar
  39. 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. Paleogeogr Paleoclimatol Paleoecol 193(3):405–423CrossRefGoogle Scholar
  40. Hohenegger J (1996) Remarks on the distribution of larger foraminifera (Protozoa) from Palau (western Carolines). In: Aoyama T (ed) The progress report of the 1995 survey of the research project, man and the environment in Micronesia, occasional papers, vol 32. Kagoshima University Research Center for the Pacific Islands, Kagoshima, pp 19–45Google Scholar
  41. Hohenegger J (2000) Coenoclineso of larger foraminifera. Micropaleontology 46(1):127–151Google Scholar
  42. Hohenegger J, Yordanova E, Tatzreiter Y (1999) Habitats of larger foraminifera on the upper reef slope of Sesko Island, Okinawa. Mar Micropaleontol 36(2):109–168CrossRefGoogle Scholar
  43. Holzmann M, Hohenegger J, Hallock P, Piller WE, Pawlowski J (2001) Molecular phylogeny of large miliolid foraminifera (Soritacea Ehrenberg 1839). Mar Micropaleontol 43:57–74CrossRefGoogle Scholar
  44. Hottinger L (1997) Shallow benthic foraminiferal assemblages as signals for depth ot their deposition and their limitations. Bulletin Société Géologique de France 168:491–505Google Scholar
  45. Hottinger L (1980) Répartition comparée des grands foraminifères de la mer Rouge et de l’Océan Indien. Annali dell’Università di Ferrara 6:35–51Google Scholar
  46. Hottinger L (1983) Processes determining the distribution of larger foraminifera in space and time, in Meulenkamp JE (ed), reconstruction of marine paleoenvironments. Utrecht Micropaleontol Bull 30:239–253Google Scholar
  47. James V, Wynd V (1965) Stratigraphic nomenclature of Iranian oil consortium agreement area. Am Assoc Pet Geol Bull 49(12):2182–2245Google Scholar
  48. Jones B, Desrochers A (1992) Shallow platform carbonates. In: Walker RG, James NP (eds) Facies models, response to sea level change: St John’s. Geological Association of Canada, Newfoundland, pp 277–303Google Scholar
  49. Kalantary V (1986) Microfacies of carbonate rocks of Iran: National Iranian Oil Company. Geological Laboratory Publication, Tehran, p 520Google Scholar
  50. Langer M, Hottinger L (2000) Biogeography of selected ‘larger’ foraminifera. Micropaleontology 46(1):105–126Google Scholar
  51. Lee JJ (1990) Fine structure of the rhodophycean Porphyridium purpureum in situ in Peneroplis pertusus (Forskal) and P. acicularis (Batsch) and in axenic culture. J Foraminifer Res 20(2):162–169CrossRefGoogle Scholar
  52. Lees GM (1933) The reservoir rocks of Persian oil fields. Am Asso Petrol Geol Bull 17(3):229–240Google Scholar
  53. Leutenegger S (1984) Symbiosis in benthic foraminifera, specificity and host adaptations. J Foramin Res 14(1):16–35CrossRefGoogle Scholar
  54. 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. Palaeogeogr Palaeoclimatol Palaeoecol 272:17–36CrossRefGoogle Scholar
  55. Motiei H (1993) Stratigraphy of Zagros. In: Hushmandzadeh A (ed) Treatise on the geology of Iran. Geologist Survey of Iran, Tehran, p 536Google Scholar
  56. Motiei H (2001) Simplified table of rock units in southwest Iran. Keyhan Exploration and Production Services, TehranGoogle Scholar
  57. Murray JW (1991) Ecology and palaeoecology of benthic foraminifera. Wiley, New York, p 397Google Scholar
  58. Pomar L (2001a) Types of carbonate platforms: a genetic approach. Basin Res 13:313–334CrossRefGoogle Scholar
  59. Pomar L (2001b) Ecological control at sedimentary accommodation: evolution from a carbonate ramp to rimmed shelf, Upper Miocene, Balearic Island. Palaeogeogr Palaeoclimatol Palaeoecol 175(1):249–272CrossRefGoogle Scholar
  60. Read JF (1985) Carbonate platform facies models. Am Assoc Pet Geol 69(1):1–21Google Scholar
  61. Reiss Z, Hottinger L (1984) The Gulf of Aqaba. Ecol Micropaleontol 50:354Google Scholar
  62. Richardson RK (1924) The geology and oil measures of south west Persia. J Inst Pet Technol 10(4):256–283Google Scholar
  63. 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). Palaeogeogr Palaeoclimatol Palaeoecol 179(1):43–56CrossRefGoogle Scholar
  64. Roozpeykar A, Moghaddam IM (2015) Biostratigraphy, facies analysis and paleoecology of the Asmari formation in the northwest of Behbahan, south-western Iran. Carbonates Evaporites 30:387–400CrossRefGoogle Scholar
  65. Roozpeykar A, Moghaddam IM (2016) Benthic foraminifera as biostratigraphical and paleoecological indicators: an example from Oligocene–Miocene deposits in the SW of the Zagros basin, Iran. Geosci Front 7:125–140CrossRefGoogle Scholar
  66. Sadeghi R, Vaziri-Moghaddam H, Taheri A (2009) Biostratigraphy and palaeoecology of the Oligo–Miocene succession in Fars and Khuzestan areas (Zagros Basin, SW Iran). Hist Biol 21:17–31CrossRefGoogle Scholar
  67. Sajadi SH, Baghbani D, Daneshian J (2014) Facies distribution, paleoecology and sedimentary environment of the Oligocene–Miocene (Asmari formation) deposits, in Qeshm Island, SE Persian Gulf. Adv Environ Biol 8(7):2407–2418Google Scholar
  68. Seyrafian A (2000) Dehdez area (a correlation across Central Zagros basin. Carbonate Evaporates 15:22–48Google Scholar
  69. Seyrafian A, Hamedani A (2003) Microfacies and paleoenvironmental interpretation of the lower Asmari formation, (Oligocene), North Central Zagros Basin, Iran. Neues Jahrbuch für Geologie und Palaeontologie Monatshefte 3:164–174Google Scholar
  70. Seyrafian A, Mojikhalifeh A (2005) Biostratigraphy of the Late Paleogene–Early Neogene succession, north-central border of Persian Gulf, Iran. Carbonates Evaporites 20:91–97CrossRefGoogle Scholar
  71. Seyrafian A, Vaziri Moghaddam H, Torabi H (1996) Biostratigraphy of the Asmari formation, Brujen area. J Sci Islamic Rep Iran 7(1):31–47Google Scholar
  72. Seyrafian A, Vaziri-Moghaddam H, Arzani N, Taheri A (2011) Facies analysis of the Asmari formation in central and north-central Zagros basin, southwest Iran. Biostratigr Paleoecol Diagenes 28:439–458Google Scholar
  73. Sherkati S, Letouzey J, Frizon de Lamotte D (2006) The central Zagros fold–thrust belt (Iran): new insights from seismic data, field observation and sandbox modeling. Tectonics 25:1–27CrossRefGoogle Scholar
  74. Sibley DF, Gregg JM (1987) Classification of dolomite rock textures. J Sediment Petrol 57(5):967–975Google Scholar
  75. Stocklin J (1968) Structural history and tectonics of Iran; a review. Am Assoc Pet Geol Bull 52(7):1229–1258Google Scholar
  76. Takin M (1972) Iranian geology and continental drift in the Middle East. Nature 235:147–150CrossRefGoogle Scholar
  77. Thomas NA (1948) The Asmari Limestone of southwest Iran. National Iranian Oil Company, Report 706, unpublishedGoogle Scholar
  78. Tucker ME (1985) Shallow marine carbonate facies and facies models, in Brenchley PJ, Williams BPJ (eds), sedimentology, recent development and applied aspects. Geol Soc Lond Spec Publ 18:139–161CrossRefGoogle Scholar
  79. Tucker ME, Wright VP (1990) Carbonate sedimentology. Blackwell Scientific Publications, Oxford, p 425CrossRefGoogle Scholar
  80. Vaziri Moghaddam H, Kimiagari M, Teheri A (2006) Depositional environment and sequence stratigraphy of the Oligo-Miocene Asmari formation in SW Iran. Springer Verlag 52:41–51Google Scholar
  81. Vaziri-Moghaddam H, Seyrafian A, Taheri A (2010) Oligocene-Miocene ramp system (Asmari formation) in the NW of the Zagros basin, Iran. Microfacies, paleoenvironment and depositional sequence. Revista Mexicana de Ciencias Geológicas 27:56–71Google Scholar
  82. Wilson JL (1975) Carbonate facies in geological history. Springer, New York, p 471CrossRefGoogle Scholar
  83. Wynd T (1965) Biofacies of Iranian oil consortium agreement area: Iranian Oil Offshore Company. Report, no. 1082, UnpublGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Narges Monjezi
    • 1
  • Mahnaz Amirshahkarami
    • 2
    Email author
  • Hasan Amiri Bakhtiar
    • 3
  • Mahnaz Parvaneh Nejad Shirazi
    • 2
  • Akram Mirzaee
    • 1
  1. 1.Department of Geology, Science and Research BranchIslamic Azad UniversityTehranIran
  2. 2.Department of GeologyPayame Noor UniversityTehranIran
  3. 3.National Iranian South Oil fields CompanyAhwazIran

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