Abstract
A sequence stratigraphic analysis of Naokelekan Formation (Late Jurassic succession) in Barsarin area, Kurdistan region, NE Iraq was constructed based on surface lithologic and thin section analyses. The formation consists of thin- to medium-bedded, black, bituminous limestones, and dolomitic limestone, intercalated with thin, black, calcareous shale in lower and upper parts. The petrographic study shows that the limestones are dominated by mudstones. The skeletal grains include ammonites, thin planktonic gastropods, forams (planktonics and benthonics), pelecypods, and ostracods. Non-skeletal grains include peloids. Facies analysis demonstrated an array of facies associations, which suggest deposition in subtidal (lagoon) environment in the lower and upper parts of the formation, and shallow open marine in its middle part. One second-order sequence can be identified, which comprises Middle and Upper Jurassic rock units. This sequence consists of two third order sequences. Third-order sequence 1 is represented by whole succession of underlying Sargelu Formation and lower part of Naokelekan Formation. While third order sequence two corresponds to middle and upper part of Naokelekan Formation. Each of the third-order sequences is comprised of transgressive and highstand system tracts. These system tracts in turn, consist of vertically stacked parasequences of shallowing upward packages.
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References
Ahmed MA (1997) Sedimentary facies and depositional environments of Jurassic rocks, NW. Iraq. Ph. D. Thesis, Univ. of Mosul, p 170
Ahmed, Sh. M., 2007, Source Rock Evaluation of Naokelekan and Barsarin Formations (Upper Jurassic) Kurdistan Region/ N. Iraq, MSc thesis, University of Sulaimani
Al-Ameri TH, Zumberge J (2012) Middle and Upper Jurassic hydrocarbon potential of the Zagros Fold Belt, North Iraq. Mar Pet Geol 36:13–34
Al-Sayyab, A., Al-Ansari, N., Al-Rawi, D., Al-Jassim, J., Al-Omari, F. and Al-Shaikh, Z., 1982, Geology of Iraq. Univ. of Mosul, 280p. (in Arabic)
Bachman M, Hirsch F (2006) Lower Cretaceous carbonate platform of the eastern Levant (Galilee and the Golan Heights): Stratigraphy and second—order sea-level change. Cretac Res 27:487–512
Balaky SMH (2004) Stratigraphy and sedimentology of Sargelu Formation (Middle Jurassic) in selected sections in Erbil and Duhok Governorates—Iraqi Kurdistan region. M.Sc. Thesis, Univ. of Salahaddin, p 110
Balaky SM (2008) Facies associations and depositional environments of Naokelekan Formation (late Jurassic), North eastern Iraq—Kurdistan region, vol 21, 1st edn. Journal of Zanko, Univ. of Salahaddin-Erbil, pp 167–180
Bellen RC, Dunnington V, Wetzel HV, Morton DM (1959) Lexique Stratigraphique International. V. III, Asie, Fasc., 10a Iraq, Paris, p 333
Bismuth, H. and Bonnefous, J., 1981, The biostratigraphy of carbonate deposits of the middle and upper Eocene in northeastern off-shoreTunisia. Paleogeogra.,Paleoclimata- aleoecology. Vol. 36, No. ¾, pp. 191–211.
Boggs S Jr (2006) Principles of Sedimentology and Stratigraphy, 4th edn. Prentic- Hall, Upper Saddle River, p 662
Buday T (1980) The regional geology of Iraq. Vol. 1, stratigraphy and paleogeography. Dar Al-Kutub pub. Univ. of Mosul, Mosul Iraq, p 445
Burchette, T.P., 1993, Mishrif Formation (Cenomanian-Turonian) Southern Arabian Gulf, carbonate platform growth along a cratonic basin margin. In: J.A. Simo, R. Scott and J.P. Masse (eds), Cretaceous Carbonate Platforms. AAPG Memior, 56, pp. 185–199.
Dunham, R.H., 1962, Classification of carbonate rocks according to depositional texture. In: Ham, W.E., ed., Classification of carbonate rocks. AAPG., Memoir 1, pp.108–121.
Emery D, Myers K (1996) Sequence stratigraphy. BP Exploration, Stockely Park Uxbridge, London, 297
Flugel E (2004) Microfacies of carbonate rocks: analysis. Interpretation and Application. Springer, Berlin, 976
Friedman GM (1959) Identification of carbonate minerals by staining methods. J Sed Petrol 29(2):87–97
Galloway W (1989) Genetic stratigraphic sequences in basin analysis, architecture and genesis of flooding—surface bounded depositional units. AAPG Bull 73:125–142
Hallam, A., 1988. A reevaluation of Jurassic eustasy in the light of new data and the revised Exxon curve. In: Wilgus et al., (Eds): Sea-level changes: An integrated approach, SEPM Special Publication, 42, 261–273.
Haq, B.U., Hardenbol, J., and Vail, P.R., 1988, Mesozoic and Cenozoic chronostratigraphy and eustatic cycles, in : Wilgus, C.K., Hasting, B.S., Kendall, C.G., Posamentier, H.W., Ross, C.A., and van Wagoner, J.C., eds., Sea level changes, SEPM spec. pub. No. 42, pp. 71–80
IUGS (Int. Un. of Geol. Sc.), 1989, Global stratigraphic chart with geochronometric and magnetostatigraphic calibration, distributed by Bureau of ICS.
Jassim SZ, Buday T (2006) Late Toarcian-Early Tithonian (Mid-Late Jurassic) Megasequence AP7. In: Jassim SZ, Goff J (eds) Regional geology of Iraq. Prague and Moravian Museum, Brno, Czech Republic, Dolin, pp 145–156
Kauffman EG, Sageman BB (1990) Biological sensing of benthic environments in dark shales and related oxygen—restricted facies. In: Ginsburg RN, Beaudoin B (eds) Cretaceous resources, events and rhythms background and plans for research. Kluwer Academic publishers, London, p 352
Murris RJ (1980) Middle East—stratigraphic evolution and oil habitat. AAPG Bull 64(5):597–618
Numan NMS (1997) A plate tectonic scenario for the Phanerozoic succession in Iraq. J Geol Soc Iraq 30(2):85–110
Numan NMS (2000) Major Cretaceous tectonic events in Iraq. Rafidain Jour Sci 11(3):32–54
Othman RS (1990) Generation, migration, and maturation of the hydrocarbons, Northern Iraq (Upper Jurassic-Lower Cretaceous). M.Sc. Thesis, Univ. of Salahaddin, p 208
Sarg, J.F., 1988, Carbonate sequence stratigraphy. In: Wilgus, C,K, Hasting, B.S., Kendall, C.G., Posamentier, H.W., Ross, C.A. and Van Wagoner, J.C., eds., Sea level changes : an integrated approach, SEPM. Spec. pub. No. 2, pp. 155–181.
Salae ATS (2001) Stratigraphy and sedimentology of the Upper Jurassic Succession—Northeastern Iraq. M.Sc. Thesis, Univ.of Baghdad, p 95
Sharland PR, Archer R, Casey DM, Davies RB, Hall SH, Heward AP, Horbury AD, Simmons MD (2001) Arabian plate sequence stratigraphy, Geo Arabia, special publication 2. Gulf Petro Link, Bahrain, 372
Sissakian VK (2000) Geological map of Iraq. Scale 1: 1000000. GEOSURV, Baghdad, Iraq
Van Wagoner, J.C., Posamentier, H.W., Mitchum, R.M., Vail, P.R., Sarg, J.F., Loutit, T.S., and Hardenbol, J., 1988, An overview of the fundamentals of sequence stratigraphy and key definition. In : Wilgus, C.K., Hasting, B.S., Kendal, C.G., Posamentier, H.W., Ross, C.A., Van Wagoner, J.C., eds., Sea level changes: SEPM spec. pub. No. 42, pp. 39–45.
Wilson JL (1975) Carbonate facies in geologic history. Springer, Berlin, p 471
Acknowledgments
The word of thanks is extended to Prof. Dr. Mazin Tamar-Agha from Baghdad University for his thorough discussions. Asst. Prof. Dr. Hawre Manswr-Bag from Soran University is thanked for his review of the manuscript. Dr. Massud H. Hamid in Geology department is also thanked for his help during field work. Mr. Renas Ismail and Mr. Wrea Jabbar for providing computer facilities are gratefully acknowledged.
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Balaky, S.M. Sequence stratigraphic analyses of Naokelekan Formation (Late Jurassic), Barsarin area, Kurdistan region—Northeast Iraq. Arab J Geosci 8, 5869–5878 (2015). https://doi.org/10.1007/s12517-014-1638-x
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DOI: https://doi.org/10.1007/s12517-014-1638-x