introduction identification of active tectonic areas, especially in convergent zone are very important because of their potential risks. nowadays, there are several algorithms that are used for tectonic analysis; one of them is tecdem that is used in this research. in this study, using remote sensing techniques, geomorphometric analysis and fieldwork were conducted to analyze morphometric and g...

Introduction Damavand volcano is a large composite cone (≥ 400 km3) with height elevation (5678m) above sea level, in Central Alborz. This volcano consists of two buildings including old lavas between 1.8 to 0.8 Ma in the northern and eastern part of the current cone and young lavas with about 0.4 to 7 ka years in the south and west part. Trachytic and trachy-andesitic lavas are the most abund...

1. introduction the effect of climate of the earth's surface is the result of interaction of different levels of atmosphere and lithosphere. one of the factors which influences that interaction is the way the system pressure transcends it. in this way, the system pressure changes and can be changed and eventually may become an environmental hazard and geomorphodynamic phenomenon. hazards are an...

introduction rural areas, due to their landscapes, natural attractions and abilities attract tourists. however, there emerge kinds of tourism that with respect to conditions and particularities leave behind different impacts and consequences around that rural set up. in iran, too, attractions and scenic landscapes as well as suitable ecological condition of some of the villages have caused rema...

introduction the central alborz in eastern mazandaran province is host to the most important carbonate-hosted fluorite deposits in iran, such as pachi-miana, sheshroodbar, era and kamarposht. in these deposits, mineralization occurs in the upper parts of the middle triassic elika formation (vahabzadeh et al., 2009 and references therein). these deposits have long been studied, and various model...

determining vulnerable areas of malekan plain aquifer for nitrate, using random forest method introduction:management of groundwater, especially in dry regions such as iran, is essential and this concern becomes further with development of agriculture, industry, population growth and climate changes, that affecting the quality and quantity of groundwater resources. hence, groundwater contaminat...