Morophtectonical Analysis of Folded Structures in the Avaj Region (NW Iran)

Document Type : Research Paper

Authors

Abstract

In this research, role of the folded structures in tectonic morphology of Avaj region is evaluated based on morphological analyses of rivers and morphometric index of stream length-gradient (SL). The study area is located in the boundary of Central Iran and Sanandaj – Sirjan Structural Zones in northwest of Iran and the most important folded structures are the Aran and Charogh Dareh anticlines and Karkhaneh syncline with general northwest-southeast trend.Lateral propagation of these folded structures has caused derivation on driniages paths convergence toward the fold plunge and also lateral propagation of fold caused anomalies in SL index of driniages passing through the folded structures.The results of morphotectonic evidence and the SL index in the study area show that the morphology of drainages and their trends are influenced by active tectonic forces and show activity of the area.

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