Facies variability of a lower Aptian carbonate platform succession, Tirgan Formation, eastern Kopet Dagh Basin, northeast Iran

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Abstract

The Lower Cretaceous (Hauterivian-lower Aptian) Tirgan Formation is a carbonate platform succession in the Kopet Dagh Basin and is up to nearly 800 m thick. This study focuses on facies variability and depositional settings of the Tirgan in the eastern part of eastern Kopet Dagh where the formation constitutes the basal part of the lower Aptian deposits. The succession developed during the final stage of evolution of Cretaceous carbonate platform in the southern Eurasian margin and could demonstrate a synchronicity with comparable successions in other areas. In the study area, the Tirgan (48 m thick) overlies Berriasian–Barremian continental strata and underlies the lower Aptian deep marine deposits. Facies analysis of Tirgan determined several facies related to open marine, ooid grainstone shoal, protected lagoon, and lower intertidal facies belts of a carbonate system. Abundant ooids, calcareous green algae, mud size carbonate, lack of evaporite evidence, and the absence of basinal deposits record deposition in warm water shallow marine settings of a carbonate ramp under a relatively humid climate. The Tirgan encompasses a single third-order depositional sequence composed of transgressive and highstand systems tracts. The transgressive package consists of intertidal, lagoon, and open marine facies intercalated with storm and shale layers showing an overall retrogradational trend. However, the highstand package consists mainly of ooid grainstone facies and displays prograding clinoforms. The lowermost lower Aptian Tirgan sequence in the study area corresponds to the basal Aptian global third-order sea level cycle. Contact of Tirgan sequence with the overlying middle to late Aptian deep marine strata is abrupt, suggesting a drowning event, which was likely the result of early Aptian extraordinary global warming.

Keywords

Kopet Dagh basin Lower aptian Tirgan formation Facies analysis Sequence stratigraphy Carbonate ramp 

Notes

Acknowledgements

This work was partially funded by the National Iranian Oil Company grant-in-aid program. Special thanks are due to M. A. Kavoosi, H. Asilian, and N. Sharafi for their valuable assistance in the field. Review and comments by two anonymous Springer Journal reviewers greatly improved the quality of the paper.

References

  1. Afshar-Harb A (1979) Stratigraphy, tectonics and petroleum geology of Kopeh Dagh region, northern Iran. PhD thesis, Petroleum Geology Section, Royal School of Mines, Imperial College, LondonGoogle Scholar
  2. Afshar-Harb A (1994) Geology of Kopet Dagh. Geological Survey of Iran, Tehran (in Persian) Google Scholar
  3. Aharipour R (1996) Microfacies analysis and depositional environment of the upper part of Tirgan, Sarcheshmeh, Pesteligh and Chehel Kaman formations, northeast Gonbad Kavoos (western Kopet-Dagh basin). MS thesis, Department of Geology, Tarbiat-Moallem University, TehranGoogle Scholar
  4. Ahr WM (1973) The carbonate ramp: an alternative to the shelf model. Trans Gulf Coast Assoc Geol Sci 23:221–225Google Scholar
  5. Ahr WM (1998) Carbonate ramps, 1973–1996: a historical review. In: Wright VP, Burchette TP (eds), Carbonate ramps. Geological Society, London, vol 149, pp 7–14Google Scholar
  6. Alavi M (1991) Sedimentary and structural characteristics of the Paleo- tethys remnants in northeastern Iran. Geol Soc Am Bull 103:983–992CrossRefGoogle Scholar
  7. Alavi M, Vaziri H, Seyed-Emami K, Lasemi Y (1997) The Triassic and associated rocks of the Nakhlak and Aghdarband areas in central and northeastern Iran as remnants of the southern Turanian active continental margin. Geol Soc Am Bull 109:1563–1575CrossRefGoogle Scholar
  8. Balthasar U, Cusack M (2015) Aragonite-calcite seas—quantifying the gray area. Geology 43:99–102CrossRefGoogle Scholar
  9. Berberian M, King GCP (1981) Towards a paleogeography and tectonic evolution of Iran. Can J Earth Sci 18:210–265CrossRefGoogle Scholar
  10. Burchette TP, Wright VP (1992) Carbonate ramp depositional systems. Sed Geol 79:3–57CrossRefGoogle Scholar
  11. Carevic I, Taherpour Khalil Abad M, Ljubovic-Obradovic D, Vaziri SH, Mirkovic M, Aryaei AA, Stejic P, Ashouri AR (2013) Comparisons between the Urgonian platform carbonates from eastern Serbia (Carpatho-Balkanides) and northeast Iran (Kopet-Dagh Basin): depositional facies, microfacies, biostratigraphy, palaeoenvironments and palaeoecology. Cretac Res 40:110–130Google Scholar
  12. Carozzi AV (1989) Carbonate rocks depositional model. Prentice Hall, New JerseyGoogle Scholar
  13. Catuneanu O (2006) Principles of sequence stratigraphy. Elsevier, Amsterdam, p 375Google Scholar
  14. Catuneanu O et al (2009) Toward the standardization of sequence stratigraphy. Earth-Sci Rev 92:1–33CrossRefGoogle Scholar
  15. Catuneanu O, Galloway WE, Kendall CG, St C, Miall AD, Posamentier HW, Strasser A, Tucker ME (2011) Sequence stratigraphy: methodology and nomenclature. Newsl Stratigr 44:173–245CrossRefGoogle Scholar
  16. Demicco RV, Hardie LA (1994) Sedimentary structures and early diagenetic features of shallow marine carbonates. Atlas Ser 1:265pGoogle Scholar
  17. Dunham RJ (1962) Classification of carbonate rocks according to depositional texture. In: Ham WE (ed) Classification of Carbonate Rocks. American Association of Petroleum Geologists Memoir 1, pp 108–121Google Scholar
  18. Flügel E (2013) Microfacies of carbonate rocks: analysis, interpretation and application. Springer Science & Business Media, BerlinGoogle Scholar
  19. Handford CR, Loucks RG (1993) Carbonate depositional sequences and system tracts- response of carbonate platforms to relative sea-level changes. In: Loucks RG, Sarg JF (eds), Carbonate sequence stratigraphy. American Association of Petroleum Geologists Memoir 57, pp 3–41Google Scholar
  20. Haq BU (2014) Cretaceous eustasy revisited. Global Planet Change 113:44–58CrossRefGoogle Scholar
  21. Immel H, Seyed Emami K, Afshar-Harb A (1997) Kreide-Ammoniten aus dem iranischen Teil des Koppeh Dagh (NE Iran). Zitteliana 21:159–190Google Scholar
  22. Javanbakht M, Ghazi S, Moussavi-Harami R, Mahboubi A (2013) Depositional history and sequence stratigraphy of Tirgan Formation (Barremian-Aptian) in centeral Kopet Dagh, NE Iran. J Geol Soc India 82:701–711CrossRefGoogle Scholar
  23. Kalantari A (1969) Foraminifera from the Middle Jurassic-Cretaceous succession of Kopet-Dagh region. NIOC Geological Laboratory Publication, Tehran, vol 3Google Scholar
  24. Kavoosi MA, Lasemi Y, Sherkati S, Moussavi-Harami R (2009) Facies analysis and depositional sequences of the Upper Jurassic Mozduran Formation, a carbonate reservoir in the Kopet Dagh Basin, NE Iran. J Pet Geol 32:235–260CrossRefGoogle Scholar
  25. Khazaei M (1999) Microfacies analysis and depositional environment of the Tirgan Formation in western Kopet Dagh (southwest of Shirvan-southwest of Bojnord). MS thesis, Department of Geology, Tarbiat-Moallem University, TehranGoogle Scholar
  26. Khodaei MA (1991) Microfacies analysis and depositional environment of the Tirgan Formation in northeast Iran (central Kopet Dagh). MS thesis, Department of Geology, Azad University, North Tehran Branch, TehranGoogle Scholar
  27. Lasemi Y (1995) Platform carbonates of the upper Jurassic Mozduran Formation in the Kopet Dagh Basin, NE Iran- facies, palaeoenvironments and sequences. Sed Geol 99:151–164CrossRefGoogle Scholar
  28. Lasemi Y, Jahani D, Amin-Rasouli H, Lasemi Z (2012) Ancient carbonate tidalites. In: Davis RA Jr, Dalrymple RW (eds) Principles of tidal sedimentology. Springer Science, New York, pp 567–607CrossRefGoogle Scholar
  29. Masse JP, Fenerci-Masse M (2013) Drowning events, development and demise of carbonate platforms and controlling factors: the late Barremian-early aptian record of southeast France. Sed Geol 298:28–52CrossRefGoogle Scholar
  30. Moussavi-Harami R, Brenner RL (1990) Lower cretaceous (Neocomian) fluvial deposits in eastern Kopet Dagh Basin, northeastern Iran. Cretac Res 11:163–174CrossRefGoogle Scholar
  31. Rankey EC (2014) Contrasts between wave- and tide-dominated oolitic systems: Holocene of Crooked-Acklins Platform, southern Bahamas. Facies 60:405–428CrossRefGoogle Scholar
  32. Rankey EC, Reeder SL (2011) Holocene oolitic marine sand complexes of the Bahamas. J Sediment Res 81:97–117CrossRefGoogle Scholar
  33. Read JF (1985) Carbonate platform facies models. AAPG Bull 66:860–879Google Scholar
  34. Robinson SA, Heimhofer U, Hesselbo SP, Petrizzo MR (2017) Mesozoic climates and oceans—a tribute to Hugh Jenkyns and Helmut Weissert. Sedimentology 64:1–15CrossRefGoogle Scholar
  35. Sandberg PA (1983) An oscillating trend in Phanerozoic non-skeletal carbonate mineralogy. Nature 305:19–22CrossRefGoogle Scholar
  36. Sarg JF (1988) Carbonate sequence stratigraphy. In: Wilgus CK et al (eds), Sea level changes-an integrated approach. SEPM Special Publications 42, p. 155-181Google Scholar
  37. Schlager W (1989) Drowning unconformities on carbonate platforms. In: Crevello PD, Sarg JF, Read JF, Wilson JL (eds), Controls on carbonate platform to basin development. SEPM Special Publication 44, pp 15–25Google Scholar
  38. Sharafi N (2012) Facies, depositional environment, and sequence stratigraphy of the Tirgan Formation in western Kopet Dagh. PhD thesis, Department of Geology, Islamic Azad University Science and Research Branch, TehranGoogle Scholar
  39. Stampfli GM, Borel GD (2004) The TRANSMED transects in space and time: constraints on the paleotectonic evolution of the Mediterranean domain. In: Cavazza W, Roure FM, Spakman W, Stampfli GM, Ziegler PA (eds) The TRANSMED Atlas-the mediterranean region from crust to mantle. Springer, Berlin, pp 53–80CrossRefGoogle Scholar
  40. Tabatabaei P (2012) Facies, depositional environment, and stratigraphy of the Tirgan and Shurijeh formations, in central and eastern Kopet Dagh. PhD thesis, Department of Geology, Islamic Azad University Science and Research Branch, TehranGoogle Scholar
  41. Taherpour Khalil Abad M, Schlagintweit F, Vaziri SH, Aryaei AA, Ashouri AR (2013) Balkhania balkhanica Mamontova, 1966 (benthic foraminifera) and Kopetdagaria sphaerica Maslov, 1960 (dasycladalean alga) from the Lower Cretaceous Tirgan Formation of the Kopet Dagh mountain range (NE Iran) and their paleobiogeographic significance. Facies 59:267–285Google Scholar
  42. Tucker ME, Wright VP (1990) Carbonate sedimentology. Blackwell, Oxford, p 482CrossRefGoogle Scholar
  43. Van Wagoner JC, Posamentier HW, Mitchum RM, Vail PR, Sarg J (1988) An overviow of the fundamentals of sequence stratigraphy and key definitions. In: Wilgus CK et al (eds), Sea level changes-an integrated approach. SEPM Special Publication 42, pp 39–45Google Scholar
  44. Weissert H, Lini A, Follmi KB, Kuhn O (1998) Correlation of early cretaceous carbon isotope stratigraphy and platform drowning events: a possible link? Palaeogeogr Palaeoclimatol Palaeoecol 137:189–203CrossRefGoogle Scholar
  45. Wilkinson BH, Owen RM, Carroll AR (1985) Submarine hydrothermal weathering, global/eustasy, and carbonate polymorphism in Phanerozoic marine oolites. J Sedim Petrol 55:171–183Google Scholar
  46. Wilmsen M, Fürsich FT, Majidifard MR (2012) The Shah Kuh Formation, a latest Barremian e Early Aptian carbonate platform of Central Iran (Khur area, Yazd Block). Cretac Res 39:183–194CrossRefGoogle Scholar
  47. Wilson JL (1975) Carbonate facies in geologic history. Springer, New YorkCrossRefGoogle Scholar
  48. Zanchi A, Zanchetta S, Berra F, Mattei M, Garzanti E, Molyneux S, Nawab A, Sabouri J (2009) The Eo-Cimmerian (Late? Triassic) orogeny in north Iran. In: Brunet MF, Wilmsen M, Granath J (eds), South Caspian to Central Iran Basins. Geological Society, London, vol 312, pp 31–55Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Geology, Science and Research BranchIslamic Azad UniversityTehranIran
  2. 2.Illinois State Geological Survey, Prairie Research InstituteUniversity of Illinois at Urbana-ChampaignChampaignUSA
  3. 3.Department of Geology, North Tehran BranchIslamic Azad UniversityTehranIran

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