%0 Journal Article
%T Tectonics movements of Kuhbanan fault system in Bahabad region, Central Iran
%A A. Shafiei Bafti
%J Iranian Journal of Earth Sciences
%D 2009
%I Islamic Azad University
%X Kuhbanan fault system, as one of the intracontinental faults of central Iran, is recognized by considerable seismogenic activities and modern morphotectonics evidences with a strike-slip (reverse component) motion. According to the geometric and kinematics data, Kuhbanan fault has been divided into 5 segments (S26, S27, S28, S29, S30) in Bahabad region. Measured geomorphic indices of ratio of valley-floor width to valley height (Vf) and morphology of the valley (V) manifest the maximum denudation rate for the S28 segment. The mean calculated values of mountain-front sinuosity (Smf) and %facet parameters for different segments of the fault are 1.1 and 83.16, consequently. Regarding to these geomorphic indices, a denudation rate of about 2-4 mmyr-1 is suggested for this region. According to reconstruction of Kuhbanan fault since 360 ka, minimum horizontal cumulative displacement of 750 m and minimum slip rate of about 2-1.4¡À0.1 mmyr-1 is inferred from well preserved geomorphology in the northern segment of the fault. Applying this horizontal cumulative displacement causes reconstruction of geomorphic markers such as drainages and shuttered ridges.
%K Active tectonics
%K Geomorphic indices
%K Drainage reconstruction
%K Cumulative displacement
%K slip rate
%K Kuhbanan faul systemt
%U http://js.mshdiau.ac.ir/ijes/index.php?option=com_tfjornal&task=downloadarchive&Itemid=0&id=5d813a4760b2777d5432ecbbf7b3ad4e5247a76bb87e5dbfed1f03582f1547ffe&doc=pdf