The Analysis of Neotectonics Activities in South Slopes of Aladagh Heights in North-East of Iran

Aladagh Heights cover a great part of north Khorasan as a main tectonic unit. This mountain range is placed in north-east of Iran and geologically is a section of Aladagh-Binalood Mountains.The different witnesses and reasons on area indicate that the Aladagh Mountains is active in view of tectonic activity. The most important evidence is the presence of active faults. In this manner many active faults like Kalat, Adel-Abad, Jajarm, Shiruyeh, Kiky, Maghsoud-Abad and Salouk are the most proofs.Providing of longitudinal profile and reference profile is an another indications that showes this area as an active tectonically, comparison with longitudinal profile and reference profile to the valleys of mountains. These comparison showes that this area is raising tectonically.In addition the proportion between the width of valleys to average height indicate the intense tectonically activities. Occurrence some violent earthquakes is another sign of the tectonic activity. The researchs also prove that earthquakes more than four Richte scale with more power are placing and these signs would be as a main object of view about neotectonical activities in the region. Sinuosity of mountain front ratio is another indication that showes this area an active tectonically.