بررسي ساختار زمين شناسي و خطرات زيست محيطي ناشي از آن در منطقه علي آباد دمق (ملاير)

Investigation on geological structure and its Echosystematic risks in the Aliabad-e-Damegh area (Malayer)

i ne /Miaoaa-e-Damegh area is situated in the 35 km north - west of the Malayer city. Itʹs geological characteristic is susceptible for happening of flood water events and extensive slope processes that cause to abundant echosystematic risks. The joints and fissure in the lithological units cause of, splits and move the boulder that mechanical erosion strongly cruch them and cause of happening the rock falls on the slope. On the other hand, great topographic slope and impermeable lithofacies cause of them great runoff water after the rain falls in the northern height of this area. Other important factor is Micaschists in extensive parts of area and because their little resistance in front of erosion and big potential to produce the mud, when the moving of run off waters increase the density of flow and while increase the transport power of rocks give the flow and extra detrital and erosional power and threat the residential regions, agricultural lands and other buildings. With due attention that factors which produce. The echosystmatic risks came from geological structures. Therefore must perform the activities such as to establish of the confident fences in riverbacks and residential regions. Resisting the installations and performance the propounds of flood spreading in order to decrease the natural damages in this area.