Abstract
This paper investigates the biostratigraphy of the Palaeocene-Lower Eocene sequences in the Bibi Hakimeh 2 subsurface/subterranean sections located in the Bibi Hakimeh Oil Field. The Palaeocene-Lower Eocene sequences are induced as part of the Pabdeh Formation. They are 49 m in thickness and are made up of clayey limestone with chert intercalations. Biostratigraphic investigations identified 10 genera and 51 species of Planktonic Foraminifera which with respect to the specific planktonic species and according to the newest Wade Biozonation led to the determination of 9 biozones and 4 subzones. The Palaeocene-Early Eocene biostratigraphic boundary determined previously in accordance with the Wynd Biozonation was reviewed with respect to the new biozonation. Moreover, the impression of the PETM on the Planktonic Foraminifera found in the Bibi Hakimeh subsurface section, has been occurred at P/E boundary on global scale was studied. Based on this research we can conclude the P/E biostratigraphic boundary border is occurred ranges between 2125 - 2124 meters in Pabdeh formation.
Highlights
The Zagros Orogenic Belt is located in the middle section of the Himalayan Alps Mountain range [1]
This paper investigates the biostratigraphy of the Palaeocene-Lower Eocene sequences in the Bibi Hakimeh 2 subsurface/subterranean sections located in the Bibi Hakimeh Oil Field
Analysis of the Palaeocene-Lower Eocene sequences of the Paabdeh Formation in the Bibi Hakimeh subsurface/subterranean section resulted in the identification of 10 genera and 51 spices of Planktonic Foraminifera
Summary
The Zagros Orogenic Belt is located in the middle section of the Himalayan Alps Mountain range [1] This orogeny is the result of the convergence of the continental fragments of central Iran and the Arabian Plate formed as a result of the destruction of the Young Tethys Ocean [2]. F. Moradian et al 148 rift at the Permian era and its reactivation during the Triassic age led to the formation of the said ocean. Moradian et al 148 rift at the Permian era and its reactivation during the Triassic age led to the formation of the said ocean This tectonic incident resulted in the separation of the central Iran Plateau from the Gondwana supercontinent, of which it had been a part and subsequently the Young Tethys Ocean was enclosed by the subduction, obduction, and continental impact processes. The Palaeocene and Eocene deposits on this section of the Zagros region consist of the Pabdeh Formation which transforms into the Jahrom Formation in an interfingering form, and the TalehZang, Amiran, Shahbazen and Sachoun Formations [5]
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