Biostratigraphy of the Upper Cretaceous for selected sections in northern Iraq

  • Fatima Talib Abdallah Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
  • Salam I. Al-Dulaimi Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
Keywords: Biostratigraphy, Aqra - Bekhme, Shiranish, Tanjero, Kolosh formation

Abstract

The Aqra - Bekhme, Shiranish, Tanjero and Kolosh formations outcrop in the High Folded Zone, Northern Iraq in Erbil and Sulaymaniyah governorates. The formations have been studied at two selected geological sections (Bekhme Gorge and Zarda Bee). In this study, these formations are investigated based on both benthic and planktonic foraminifera. Depending on foraminifer’s investigation, three biozones have been recognized; two biozones are identified in the benthic foraminifera and the third one is identified in the planktonic foraminifera as follow:

  1. Siderolites calcitropodes - Orbitoides apiculatus - Omphalocyclus macroporus Assemblage zone.
  2. Loftusia morgani range zone.
  3. Abathomphalus mayaroensis rangezone.
Published
2019-03-27
How to Cite
Abdallah, F. T., & Al-Dulaimi, S. I. (2019). Biostratigraphy of the Upper Cretaceous for selected sections in northern Iraq. Iraqi Journal of Science, 60(3), 545-553. Retrieved from https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/639
Section
Geology