The study of the Geomorphology and the Erosion in Alomoute river basin.

Subject Areas : Geopolitic

SH GHAHRAMANI ¹ , محمد رضا SARVATI ²

1 - ندارد
2 - ندارد

Received: 2015-01-10 Accepted : 2015-01-10 Published : 2008-04-20

Keywords: Alamut rood, Neogen sediment, Alamut valley, Moalem kellaye, karaj sediment,

Abstract :

The Alamute rood basin is located in central Alborz montain , and is one of the trinmings and the main lops of the Shahrood river and at last beside a basin of the Sefidrood vast basin in the east – north of Ghazvin. Each year 40 milliun  of the sediment of this surface is separated and move to rivers flows and at last pour to Sefidrood dam and the surface of the below before the Sefidrood dam lake. At the bottom of the Allamute valley and the middle of the basin the markers that is related to Neogen period include sediment of evaporated and discontracted and also the makers of paleogen in the sowth hight and the makers of the kartase and infra kambrin in the North hight. The landforms that are the same on old conic. Erosion valley and the earthquicks specially in the Neogen and red and small sediment in konglomera in Neogen and also erosion cliff. In this way 16% of the rigeon that are in the makers of the Neogen have the hard and influenced of the forming of sediment. Paint this geomorphology that is influenced in the erosion and the sediment in the basin. The topography factor is the fint factor and the geometry and the kind ofter sond is the second and the coverage of the greens factor that is included the act changes of the farms for the herbivorons is the last factor of the erosion.