Calcareous nannofossil biostratigraphy of Sarcheshmeh and Sanganeh formations at Qaleh Zoo section (North-West of Shirvan)

Gholami Fard, A; Kani, A; Mahanipour, A

doi:10.22071/gsj.2016.40738

Calcareous nannofossil biostratigraphy of Sarcheshmeh and Sanganeh formations at Qaleh Zoo section (North-West of Shirvan)

Document Type : Original Research Paper

Authors

A Gholami fard ¹

A Kani ²

A Mahanipour ³

¹ Ph.D. Student, Faculty of Earth Science, Shahid Beheshti University, Tehran, Iran

² Associate Professor, Faculty of Earth Science, Shahid Beheshti University, Tehran, Iran

³ Assistant Professor, Faculty of Science, Geology group, Shahid Bahonar University, Kerman, Iran

10.22071/gsj.2016.40738

Abstract

This study investigates the Lower Cretaceous sedimentary succession comprising Sarcheshmeh Formation and Sanganeh Formation in the Ghaleh zoo Section from the standpoint of Calcareous Nannofossils. The results reveals presence of 60 species from 33 genera of 15 families. Based on the index nannofossil taxa, the upper part of NC6, NC7A, NC7(B&C) and NC8(A&B) nannofossil zones (equivalent to the upper part of of CC7a, CC7b and CC8 zones), are present in this section. The calcareous nannofossils found in this section point to an Early Aptian to Late Aptian age of deposition for the rocks of Sarcheshmeh Formation and Late Aptian to Early Albian for the rocks of Sanganeh Formation.

Keywords

Calcareous Nannofossils

Biostratigraphy

Kopet-Dagh Basin

Sarcheshmeh Formation

Sanganeh Formation

Qaleh Zoo