Ostracod biostratigraphy of Abtalkh Formation in Mozduran section, East of Kopeh-Dagh

Mostafavi, B; Hadavi, F; Allameh, M; Notghi Moghaddam, M

doi:10.22071/gsj.2016.40916

Ostracod biostratigraphy of Abtalkh Formation in Mozduran section, East of Kopeh-Dagh

Document Type : Original Research Paper

Authors

B Mostafavi ¹

F Hadavi ²

M Allameh ³

M Notghi Moghaddam ⁴

¹ Ph.D. Student, International Campus, Ferdowsi University of Mashhad, Mashhad, Iran

² Professor, Department of Geology, Ferdowsi University of Mashhad, Mashhad, Iran

³ Associate Professor, Department of Geology, Islamic Azad University Mashhad Branch, Mashhad, Iran

⁴ Assistant Professor, Department of Geology, Payame Noor University, Tehran, Iran

10.22071/gsj.2016.40916

Abstract

The Abtalkh Formation is one of the Cretaceous sedimentary units of Kopeh-Dagh sedimentary basin that consist shale and marl. This formation is rich in ostracods. This study lead to recognition of 18 genera and 48 species. The recognized assemblages of ostracods is compared with those reported from Iran and other adjacent regions. Based on the identified species three biozones (Cytherelloidea sp1, Veenia sp2, Limburgina sp.) have been determined in this section. According to the established ostracod biozones and correlation with biozones provided based on nannofossil, the age of the Abtalkh Formation in the studied section is Late Campanian- Early Maastrichtian- Late Maastrichtian.

Keywords

Biostratigraphy

Ostracod

Abtalkh

Kopet Dagh

Mozduran