Definition of Carboniferous Deposits in the Stratigraphic Khames Section, Northeast of Khalkhal Based on Foraminifera

Shabanian, R; Ghanizadeh, N; Mohammadi, M; Roohi, N

doi:10.22071/gsj.2015.42261

Definition of Carboniferous Deposits in the Stratigraphic Khames Section, Northeast of Khalkhal Based on Foraminifera

Document Type : Original Research Paper

Authors

R Shabanian ¹

N Ghanizadeh ²

M Mohammadi ¹

N Roohi ²

¹ Assistant Professor, Department of Geology, Payam Noor University, Iran

² M.Sc., Department of Geology, Payam Noor University, Iran

10.22071/gsj.2015.42261

Abstract

In this study, 60 samples have been studied from Carboniferous deposits of Khames stratigraphical section, 10 Km southeast of Khalkhal. The marine sequence of Khames stratigraphical section is about 163.5 m. thick and consists of gray to black Limestone and dolomitic limestone. The lower boundary of the under study section marked with yellowish limestones of Cretaceous and dark Sills with Faulted contact. The upper boundary of the Carboniferous strata is covered with Pliocene Polygenetic conglomerate disconformably. The Carboniferous unit studied here has not been named so far, so in this research, we have attempted to identify the stratigraphical position of the mentioned sequence. In this research 30 genera and 25 species of benthic foraminifera were identified similar to those reported from carboniferous strata of Qezelqaleh, Bagher Abad, Mobarak and Sardar formations suggesting a Late Visean to Early Bashkirian age for the Khames Carboniferous marine sequence.

Keywords

Foraminifera

Late Visean

Early Bashkarian

Carboniferous

Khames

Khalkhal