Document Type : Original Research Paper
Authors
1 Ph. D., Iran Nuclear Waste Management Co., Atomic Energy Organization of Iran, Tehran, Iran
2 Associate Proessor, Islamic Azad University North Tehran, Branch; Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran
3 Assistant Professor, Nuclear Fuel Cycle Institute, Atomic Energy Organization of Iran, Tehran, Iran
4 Ph. D., Geological Survey of Iran, Tehran, Iran
Abstract
The existence of a sedimentary basin with a large thickness of Neogene sediments(Lower Red Formation) in the Anarak-Talmessi region of central Iran with a basement of Precambrian metamorphic rocks, high rate of erosion processes, and more importantly its safety necessity led us to define the structural pattern and analyze its active tectonics and seimotectonics. In this regard, field observations, processing of satellite images, and investigation of eroded landforms were used. According to the lack of Qom and Upper Red Formations and faulting plus aseismic characteristics of the area up to a radial distance of 86 km, it can be concluded that a combination of a stair-step uplift-erosion system has controlled the basin, which caused its scarp shape and lack of younger sediments.
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