ريخت زمين ساخت و ارزيابي فعاليت گسل كوهبنان از طريق محاسبه شاخص هاي زمين ريختي

The assessment of activity and Morphotectonics of Kuhbanan fault by geomorphic index values

Kuhbanan fault system , as one of the major of intracontinental faults system in southeast of central Iran .This fault system caused most of earthquake evidences in North Kerman and south Yazd with strike - slip (reverse component) motion . Morphotectonic evidences along this fault system confirm recent activities. According to the geomorphic and kinematics data, Kuhbanan fault has divided into 38 segments. The mean calculated values of mountain front sinuosity(Smf) and %facet,V and Vf Ratios, for different segments of fault are 1.058,%87.57,0.7466,1.8399 consequently. Regarding to these geomorphic indexes, this region is a high tectonic activity region and denudation rate of about 3 ± 1 mmyr-1 is suggested for this fault system.