Introduction of Ophiolitic Complex Rock Series in the 1:100,000 Sheet of Mianrahan (West of Iran)

Hamideh Farahmand,Mohammad Ali Arian

doi:10.4236/ojms.2016.64043

Abstract

The Mianrahan’s ophiolitic complex out crops in the northeast of Kermanshah and along with the Zagros thrust zone. In Mianrahan sheet, these ophiolites are located along the NW-SE and parallel to the Zagros Thrust in the ground. The rocks of this ophiolite complex consist of peridotite, serpentinites, gabbro, dolerite dykes, basaltic lavas associated with marine sediments containing the cretaceous limestones, siliceous limestones and radiolarites. Stratification of this ophiolitic complex is similar to lithological facies sequence of the oceanic crust. However, in some parts, it could be seen as scattered and melanged in the ground. Petrographic study of Mianrahan’s ophiolitic complex started with the ultramafic sequence and followed by sedimentary rocks.

Highlights

IntroductionIn Iran country, the Zagros suture zone extends from Iranian-Turkish border in the North West of country, to the north of the Hormuz Strait in southern Iran and Northern Persian Gulf, and is an important part of the Alpine-Himalayan orogenic belt that includes the ophiolites investigated in this study
Introduction of Ophiolitic Complex RockSeries in the 1:100,000 Sheet of Mianrahan (West of Iran)Hamideh Farahmand, Mohammad Ali Arian*Department of Geology, Faculty of Science, North Tehran Branch, Islamic Azad University, Tehran, IranHow to cite this paper: Farahmand, H. and Arian, M.A. (2016) Introduction of Ophiolitic Complex Rock Series in the 1:100,000 Sheet of Mianrahan (West of Iran)
In Mianrahan sheet, these ophiolites are located along the NW-SE and parallel to the Zagros Thrust in the ground

Summary

Introduction

In Iran country, the Zagros suture zone extends from Iranian-Turkish border in the North West of country, to the north of the Hormuz Strait in southern Iran and Northern Persian Gulf, and is an important part of the Alpine-Himalayan orogenic belt that includes the ophiolites investigated in this study. Mianrahan’s ophiolite located in tectonic-structural zone of the Zagros Thrust in the West of Iran, the northern part of the Main Zagros Thrust and is considered as a part of ophiolite sequences in the Zagros suture zone [1] (Figure 1). In terms of composition and structure, the two ophiolitic complexes of Kermanshah and Neyriz in Fars province have a great similarity with the ophiolite-radiolarite complex of Oman, known as the Samailophiolite, and ophiolites of the margin of Saudi Arabiam [2]. The ophiolite rocks complex and their arrangement will be discussed

Findings

Discussion

Conclusion