Document Type : Original Research Paper
Authors
1 M.Sc., Geology Department, Ferdowsi University of Mashhad, Mashhad; Headman of the Instrumentation Shop of Hirvi Dam. Kermanshah, Iran
2 Assistant Professor, Geology Department, Ferdowsi University of Mashhad, Mashhad, Iran
3 Assistant Professor, Earthquake Research Center, Ferdowsi University of Mashhad, Mashhad, Iran
4 Lecturer, Geology Department, Islamic Azad University of Mashhad, Mashhad, Iran
Abstract
The fractures are one of the structures, which can be used as a tool to unravel the tectonic processes in a region. The measurements of the fractures were conducted in the footwall and hanging wall of the North Neyshabour Thrust, which is one of the active faults of the region. We separated the fractures of the North Neyshabuor Thrust into tow sets of perpendicular and parallel to the fault, which suggests variations in tectonic condition. Clockwise rotation around vertical axis is the recent model, which is proposed for this region. Rotation model noted that the eastern part of NE Iran has been moving towards south and this magnitude increase towards the East. The southward movement of this region is in conflict with regional movement of the Iranian micro plate, which moves to the north. Increasing in elevation towards the east is caused by increasing in the shortening rate. Thus, a decrease in GPS vector towards the east suggests that the movement vector decreases towards the east. This does not indicate a decrease of shortening rate.
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