Investigation and analyzing of geomorphological features of TOROUD fault

Subject Areas : Urban and Regional Planning Studies

masood moeiri ¹ (استادیار گروه جغرافیای دانشگاه اصفهان)
seyed hojat mosavi ² (کارشناسی ارشد ژئو مورفولوژی دانشگاه اصفهان)

Received: 2008-07-07 Accepted : 2009-03-15 Published : 2009-02-19

Keywords: fault, Horst, graben, Plate tectonic, Morphotectonic, Kalut, Toroud,

Abstract :

Because of pressuring of inner forces, a series of breaks are formed in Earth crust. If these broken layers move and displace together vertically and horizontally, they make faults form. There are different faults in Iran. They are as kinds of active tectonic of its area. One of the most important faulting parts in Iran called central Iran. It included nine important faults. And it is the most compact faulting area of Iran. In north end part of The Great Kavir, and in south part of Shahroud-Semnan area, there is a fault called Toroud-Enjilo. It is important and active fault of central Iran. This fault has a north east-south west direction, and it has right slide and left orbit movements. It is called as inverse normal, steeply, almost vertical, and active and 80 degree steep fault. Continuous vertical and horizontal movements make special landforms, features, and forms exist in Toroud-Satveh area that they are as important geomorphological forms, and they need to analyze and survey. Can refer to the faults results as followings: creating new local feature sand faults, increasing the height of folder walls and valleys tectonic, increasing the height of salt domes, speeding local magmatic activity, border between local mountains in north great Kavir and neighbor low lands, separating colored mélange of Sabzevar region in Kavir, earthquake of Toroud in 1331 and conducting underground waters. Finally, this zone active tectonic and the sequences of it can be contributed to Toroud fault.