Semiannual, Islamic Azad University (Meybod Branch)

Document Type : Research Article


1 Faculty member of Darolelam Educational Institute, Yazd

2 Retired assistant professor of agricultural and Natural Resources Research and Education Center, Yazd, Iran


Background and objective: Movements of the earth's crust are one of the important factors in the shaping of landscapes so that the effect of these movements on geomorphology and its related consequences can be identified by studying morphotectonics indicators. The aim of this study was to investigate the tectonic mobility and deformation pattern and fault geometry of the western Alborz zone in Iran.
Materials and methods: In this study, types of morphotectonics indicators such as sinuosity of the mountain front (Smf), river gradient (Sl), valley width to depth (Vf), asymmetry of waterways (Af), and hypsometric curves in thirty watersheds using topographic maps And satellite images were studied. The basins were classified into three categories: active, median, and inactive, and the status of the network of waterways and alluvial terraces, which are closely related to tectonics, were evaluated.
Results and conclusion: The results showed that the tectonic regime prevailing in this area is a compression type. Thirteen watersheds are active, fourteen are moderately active, and the rest are inactive this conclusion was obtained by combining all the data. Some faults are inclined towards the south and others towards the north. The main faults are mainly reverse type in all sections.


Main Subjects

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