Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

Proceedings of Gubkin University

UDC: 550.8
DOI: 10.33285/2073-9028-2019-3(296)-32-49


Mohammed Kardo S.1,
Kosenkova Natalia N.1

1 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation

Keywords: facies analysis, sedimentary environments, Lower Miocene formations, Jeribe, Dhiban, Euphrates, basal anhydrite, Kurdistan


The article uses data on the recently discovered oil fields of Sargala and Shakal, in the zone of the Kirkuk basin of the Zagros folded-thrust belt. The Lower Miocene formations (Euphrates and Jeribe) are the target objects of the tertiary oil and gas system in Iraqi Kurdistan, along with the Oligocene (Kirkuk). Formations are composed of carbonates with a few interbeds of evaporites of the Dhiban formation. In the framework of this study, 15 facies were identified based on the analysis of faunal residues (mainly benthic foraminifera) and texture-structural characteristics of sedimentary rocks. The facies of the Jeribe formation showed to be deposited of the inner part of the carbonate ramp, while the Dhiban formation corresponds to the conditions of the coastal Sebkha and isolated lagoon and shallow waters of the open sea. The Euphrates Formation was deposited in an open shallow-marine environment to the isolated lagoon.


1. Аль-Джубури А.И., МакКанн Т., Газаль М.М. Реконструкция источников сноса для песчаников Миоцена северного Ирака (на основании петрографического анализа, анализа вещественного состава и химии минералов обломочной составляющей)//Геология и геофизика. — 2009. — Т. 50. — № 6. — С. 670-690.
2. Ирак. Геологическое строение, нефтегазоносность и состояние нефтегазовой промышленности, обработка и интерпретация сейсмических материалов по лицензионным блокам в южной и центральной частях Западной Пустыни, оценка прогнозных ресурсов нефти и газа. — М.: Совгеоинфо, 2009. — Том I. — 158 с.
3. Al-Juboury A.L., Al-Tarif A.M., Al-Eisa M. Basin analysis of the Burdigalian and Early Langhian successions, Kirkuk Basin, Iraq/7-In: B.C. Schreiber, S. Lugli & M. Babel. Evapo-rites Through Space and Time/Geological Society, London, Special Publications, 2007, no. 285, p. 53-68.
4. Al-Dabbas M.A., Al-Sagri K.E.A., Al-Jassim J.A., Al-Jwaini Y.S. Sedimentological and diagenetic study of the Early Middle Miocene Jerib Limestone Formation in selected wells from Iraq northern oilfields (Ajil; Hamrin; Jadid; Khashab). Journal of Baghdad for Science, 2013, vol. 10, no. 1, p. 207-216.
5. English J.M., Lunn G.A., Ferrier L., Yacu G. Geologic Evolution of the Iraqi Zagros, and its Influence on the Distribution of Hydrocarbons in the Kurdistan Region. AAPG Bulletin, 2015, vol. 99, no. 02, p. 231-272. https://doi:10.1306/06271413205
6. Sissakian V.K., Karim S.A., Al-Kubaisyi K.N., Al-Ansari N., Knutsson S. The Miocene Sequence in Iraq, a review and discussion, with emphasize on the stratigraphy, paleoecology and economic potential. Journal of Earth Sciences and Geotechnical Engineering, 2016, vol. 6, no. 03, p. 271-317.
7. Bellen R.C., Dunnington H.V., Wetzel R., Morton D. Lexique Stratigraphique International Asie, Iraq, 1959, vol. 3C, no. 10a, 333 p.
8. Karim S.A., Sissakian V.K. and Al-Kubaysi K.N. Stratigraphy of the Oligocene-Early Miocene exposed in Sinjar area, NW Iraq. Iraqi Bulletin of Geology and Mining, 2014, vol. 10, no. 03, p. 1-28.
9. Dunnington H.V. Generation, migration, accumulation, and dissipation of oil in northern Iraq. In L.G. Weeks (editor) AAPG Habitat of oil. A Symposium: AAPG Special Publication 18, 1958, p. 1194-1251.
10. Buday T., Jassim S.Z. The Regional Geology of Iraq, Tectonism, Magmatism, and Metamorphism. State Establishment of Geological Survey and Mineral Investigation, Baghdad, Iraq, 1987, vol. 2, 352 p.
11. Dunham R.J. Classification of carbonate rocks according to depositional texture. In Ham W.E. (ed.), Classification of carbonate rocks: American Association of Petroleum Geologists Memoir, 1987, p. 108-121.
12. Wilson J.L. Carbonate Facies in Geologic History. Springer Verlag, New York, 1975, vol. 13, 108 p.
13. Tucker M.E., Wright V.P., Dickson J. Carbonate sedimentology. Wiley-Blackwell, Hoboken, London, 1990, 482 p.
14. Nicholas G. Sedimentological and stratigraphy. 2ed edn. Blackwell Science Ltd, Oxford, 2009, 419 p.
15. Flugel E. Microfacies of carbonate rocks: analysis, interpretation and application. Springer Verlag, Berlin, 2004, 976 p.
16. Flugel E. Microfacies of carbonate rocks. Springer Verlag, Berlin Heidelberg, 2010, 984 p.
17. Gawthorpe R.L. Sedimentation during carbonate ramp-to-slope evolution in a tectonically active area: Bowland Basin (Dinantian), northern England. Sedimentology, 1986, vol. 33, issue 2, р. 185-206.
18. Warren J.K., Kendall C.G.S. Comparison of sequences formed in marine sabkha (subaerial) and salina (subaqueous) settings-modern and ancient. American Association of Petroleum Geologists Bulletin, 1985, vol. 69, no. 06, p. 1013-1023.
19. Kendall A.C. Facies models 11. Continental and supratidal (sabkha) evaporites. Geoscience Canada, 1978, vol. 5, no. 02, p. 66-78.
20. Krumbein W.E. and Cohen Y. Primary production, mat formation and lithification: contribution of oxygenic and facultative anoxygenic cyanobacteria. In Flugel E. (ed.), Fossil Algae: Resent Results and Development. Springer-Verlag, Berlin, 1977, p. 37-56.
21. MacEachern J.A., Pemberton S.G., Bann K.L. and Gingras M.K. Departures from the arche- typal ichnofacies: Effective recognition of environmental stress in the rock record. Applied Ichnology. Society of Economic Paleontologists and Mineralogists, Short Course Notes, 2007, vol. 52, p. 65-92.
22. Al-Ghreri M.F., Al-Gibour A.S., Al-Heety S.O. Facies Characteristics, Depositional Environments and Sequences Stratigraphy of the Euphrates Formation in Hadetha Area, Western Iraq. International Journal of Science and Research (IJSR), 2015, vol. 4, issue 4, p. 181-189.
23. Boggs Jr.S. Principles of sedimentology and stratigraphy. (4th ed.). Pearson Prentice Hall, Upper Saddle River, 2006, 662 p.
24. Nichols G. Sedimentology and Stratigraphy. 2nd ed. Chichester, UK; Hoboken, NJ: Wiley-Blackwell, 2009, 419 p.
25. Aleali M., Rahimpour-Bonab H., Moussavi-Harami R., Jahani D. Environmental and sequence stratigraphic implications of anhydrite textures: A case from the Lower Triassic of the Central Persian Gulf. Journal of Asian Earth Sciences, 2013, vol. 75, p. 110-125. j.jseaes.2013.07.017