Biostratigraphy of the Gurpi Formation based on Calcareous Nannofossil in the Kouh-e Sefid Anticline Section, Izeh Structural Zone

Senemari, Saeedeh

doi:10.29252/gnf.5.2.199

Volume 5, Issue 2 (Autumn&Winter 2020) KJES 2020, 5(2): 199-216 | Back to browse issues page

‎ 10.29252/gnf.5.2.199

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Senemari S. Biostratigraphy of the Gurpi Formation based on Calcareous Nannofossil in the Kouh-e Sefid Anticline Section, Izeh Structural Zone. KJES 2020; 5 (2) :199-216
URL: http://gnf.khu.ac.ir/article-1-2584-en.html

Biostratigraphy of the Gurpi Formation based on Calcareous Nannofossil in the Kouh-e Sefid Anticline Section, Izeh Structural Zone

Saeedeh Senemari ^*

Imam Khomeini International University , senemari2004@yahoo.com

Abstract: (1660 Views)

The Gurpi Formation with a thickness of 190 m at the Kouh-e Sefid anticline is investigated based on the calcareous nannofossils. In this section, Gurpi Formation is mainly consists of shale, marls and argillaceous limestones. As a result of this study, 21 genera and 41 species of calcareous nannofossil have been recognized. Based on distribution of index species calcareous nannofossils CC16-CC25 biozones have been recognized, that is corresponding to UC12-UC20a^TP. According to the identified biozones, the age of the Gurpi Formation in this section is middle/late Santonian to early late Maastrichtian. This study in the Kouh-e Sefid anticline shows that the sedimentation of Gurpi Formation started at the middle/late Santonian and continued to the early late Maastrichtian

Keywords: Biozones, Zagros, Cretaceous, Kouh-e Sefid, Nannofossils

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Type of Study: Original Research | Subject: Stratigraphy and Paleontology
Received: 2017/03/8 | Accepted: 2019/07/8 | Published: 2020/02/10