Jointing analysis of the northern part of the Damavand region And assess the risk of landslides

The joints are fractures that often are observed in rocks. the most important feature in these joints are that in these type of fracture, There is no relative motion parallel to the plane fracture the study area is located in Mazandaran province and between Bayjan and Mangal. the main road to access this area is Tehran - Amol (Haraz) road. in this study carried out many field visits and using related softwares more than 250 stations were recorded and at each station provides good exposure of fractures selected and were measured. measuring Joints method all of stations was based on the selected method that after measuring the joints, Rose diagrams were prepared for each station. for the interpretation of joints, we separation of joints based on rock units that The dominant trend in all of rock units is in NE - SW. it is also possible with this process to the formation of the joint orogenic phase attributed Pasadenian. and the recent tensions in this area is N – NE. also according to the distribution stations in the region where has the potential landslides have been identified.