Paleoclimatology Evidence of Eocene from Jaddala Formation in Northwestern Iraq

  • Alaa Al-Zubaidi
  • Al-Badrani Omar Email author
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)


Two hundred species of calcareous Nannofossils were identified from the Jaddala Formation from type section (stratotype) northwestern Iraq. The recorded of the calcareous nannofossils assemblages enables the recognition of the following four biozones which are (from older to younger):
  • Tribrachiatus orthostylus Interval Biozone (CP10) (Part)

  • Discoaster lodoensis Interval Biozone (CP11)

  • Discoaster sublodoensis Interval Biozone (CP12)

  • Nannotetrina quadrata interval Range Biozone (CP13).

On the basis of biocorrelation with previous works Early to Middle Eocene age was confirmed for the Jaddala Formation at the studied section (near Mosul, Iraq), and the paleoclimate was warm referred as tropical to subtropical at low latitude areas.


Eocene Paleoclimatology Jaddala 


  1. 1.
    Armstrong, H., Brasier, M.: Microfossils, p. 296. Black well publishing (2005)Google Scholar
  2. 2.
    van Bellen, R.C., Dunnington, H.V., Wetzel, R., Morton, D.M.: Lexique Stratigraphique International, Vol. III: Asie, Fascicule 10a, Iraq, p. 333 (1959)Google Scholar
  3. 3.
    Buday, R.T., Jassim, S.Z.: The Regional Geology of Iraq, Tectonism, Magmatism and Metamorphism, Baghdad, vol. 2, p. 352 (1987)Google Scholar
  4. 4.
    Gradstein, F.M., Ogg, J.G., Schmitz, M.D., Ogg, G.M.: The Geologic Time Scale 2012, vol. 2, 1144p. Elsevier (2012)Google Scholar
  5. 5.
    Maala, K.A.: Geology of Sinjar Area Part 1. No. 860. SOM Library (Unpubl. Rep), Baghdad (1977)Google Scholar
  6. 6.
    Molina, E., Alegret, L., Apellaniz, E., Bernoala, G., Caballero, F., Turell, J.D., Hardenbol, J., Clausen, C.H., Clarrasoana, J., Monechi, S., Ortiz, S., Orue-Etxebarria, X., Payros, A., Pujalte, V., Rodriguez-Tovar, F.J., Tori, F., Toaquella, J., Uchman, A.: The global stratotype section and point (GSSP) for the base of the Lutetian stage at the Gorrondatxe section, Spain. Episodes 34(2), 87–108, Pl. 1 (2011)CrossRefGoogle Scholar
  7. 7.
    Perch-Nielsen, K.: Cenozoic calcareous nannofossils. In: Bolli, H.M., Saundes, J.B., Perch-Nielsen, K. (eds.) Plankton Stratigraphy, pp. 427–554. Cambridge University Press, Cambridge (1985)Google Scholar
  8. 8.
    Young, J.R., Bown, P.R.: Cenozoic calcareous nannoplankton classification. J. Plankton Res. 19, 36–47 (1997)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of GeographyEducation College, HamdaniyaMosulIraq
  2. 2.Department of GeologyScience College, Mosul UniversityMosulIraq

Personalised recommendations