Geomorphological evaluation of Potential mass Movements in Siahkooh anticlinal, west of Iran

Mass movement occurrence in its various forms in mountainous areas causes a lot of human and financial losses yearly. Thus، it is necessary to identify and prioritize vulnerable places and prepare a specific regional plan to decrease occurrence and losses due to landslide in prone areas. Syahkooh anticline is one of the region which، signs of numerous landslide can be seen through all it. In this research، after identification of effective factors using Entropy model، these factors were investigated، an Entropy matrix produced and zoning map of landslide prepared and finally to reduce its damages some solutions have been suggested. The results show that distance of fault 46. 06%، elevation 28. 26%، slope 17. 54%، lithology 7. 14% and aspect 1% had been affected. Zoning map shows low risk areas only include 21. 76% of the region and 78. 23% of the region lied on the side of high and moderate risk zones، which states the high potential area of landslide occurrence in the area. The proposed solutions are construction away from faults and steep Asmari formation، increase in the level of protection of roads، control of Drilling and excavation in Asmari formation. These are the most important measures to reduce losses mass movement in the Syahkooh anticline.