LANDSLIDE ZONATION IN FASHAM AREA OF TEHRAN PROVINCE (IRAN) Shadi Khoshdoni Farahani, Assoc.Prof.Dr.Md Nor Kamarudin, Dr. Mojgan Zarei Nejad Faculty of Geoinformation Science and Engineering, Universiti Teknologi Malaysia 81300 Skudai, Johor, Malaysia Email:
[email protected] Faculty of Geoinformation Science and Engineering, Universiti Teknologi Malaysia 81300 Skudai, Johor , Malaysia Email:
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[email protected] ABSTRACT Tehran province which encircles the capital of the Islamic Republic of Iran is highly momentous from the politico- socio-economic-cultural aspects. This significance has instigated the implementation of the geological, geographical and climatological studies in this state in a comprehensive and precise manner. Fasham district in the north eastern part of Tehran province which is a geologically and geographically area has been opted out in this research for semi- detailed studies. the case studied in this research is the landslide in Fasham area. Iran is one of the highly landslide prone countries due to its particular geological, topographical and climatological conditions. Heavy financial lost are reported each year due to the landslide occurrence. The transpiration of these landslides occasionally brings about other death tolls and financial lost originating from earthquakes. Some of the factors affecting this phenomenon are as follows: the alteration of the slope amplitude, geotechnical and litho logical circumstances, earthquake and trembling, tectonics motions, structural alterations, pluvial effects and snow thawing, the extermination of the vegetation, land utilization alteration. The zone under studied is prone to landslide due to various reasons such as possessing special geological conditions and special geographical position.