Zakhak city with a total area of 945 square kilometers is located north of Sistan and Balouchestan province and is located in the geographical position 8944. 30 degrees north and 7067. 61 degrees east. The city's population, according to the 2006 census, is 71,462, it generates 25 tons of waste per day. These wastes accumulate behind the hospital in Zahak, where environmental pollution for residents of nearby villages is one of the most important problems due to the misplaced location of the site. The study area is located in the Sistan block in terms of Structural-sedimentary divisions in Iran. NQ stratigraphic unit is the largest stratigraphic zone in Sistan Plain, consisting of alluvial fine-grained sediments in a river whose sedimentation time from the end of the Miocene to the early days of the Holocene continued. These sediments are often the result of erosion lake plain and drainage, shapes today to have gained in the context of all the villages, settlements and activity centers formed and large parts of the East area The study encompasses the study. In this research, it has been attempted to investigate the geomorphology of the area with the overlap of gradient layers, elevation digital, geology, roads, distance from the city, distance from the well, distance from the river and priority drainage system with the help of GIS. Then the banned areas were identified, so that the eastern parts of the city of Zahak are more preferable. پرونده مقاله

Embankment dam of Zarani in the Hormozgan province is located 35 km southeast of Minab. Studied area is located in the western end of the Makran subduction zone. The main regional faulting systems near the site, is Minab- Zandan-Palami right- handed thrust system. The purpose of this study was to identify the geology, engineering geology of reservoir area, and foundation and fulcrum of dam, scrutiny and analysis discontinuities of rock mass, to determine joints and fractures, determine the permeability of dam structure (foundation and fulcrum) based on the results lugeon test and finally, offer suggestions for cut off dam. The research method includes first gather basic information and general research, and then field investigations were done and finally were analyzed data by the Stereonet, Stereograph and Dips software. The result of lugeon test showed penetration depth in the right, middle and left side are 45, 45 and 50 respectively, the slope of shale - sandstone layers of site is near vertical and the dip direction is the east to northeast. This condition of site formation has cut off rule, but it cause to seepage on the right shore of reservoir. In the right shore of the reservoir, shale layers were dominant and have folded out by the Zendan faults and has changed trend of the layers, which caused cut off in this area. The left and right abutment of structure, three sets of discontinuities crosscut the rock mass, according to the layering in these categories are with discontinuities, make most of potentially space to escape water, but because of vertical layers, this space has not noticeable effect on seepage. پرونده مقاله