Geology and landslides survey using electrical resistivity imaging method at Fraser Hill, Pahang

Fraser Hill is a study area which located in Raub, Pahang. In this study, it will be focusing on geological mapping and also electrical resistivity survey for landslide. It is located in the longitude between 101⁰45‟30‟‟ to 101⁰47‟30‟‟ N and latitude between 3⁰44‟30‟‟ to 3⁰42‟30‟‟ E. Sungai Teruas are set at the research area. Mapping using aerial image and interpretation from previous research conducted to produce the geological map of area Fraser Hill, Pahang with a specific dimension area of study which are 25km² and also doing the survey of landslide. The method uses in geological mapping including from the literature review, aerial photographs, and producing varies map for the study area using GIS. There are two rock units that was identify in research area which consists of granite unit and schist unit. . Landslide has the biggest influenced by the strength of the soil and also distribution of the rock. There are others factors that influence the stability of the landslide such as weathering and also water content. Some of these factor can be detected by using the electrical resistivity survey which also known as ERI. The three landslides have been choosing and for each landslide has been conducted one line to do the resistivity survey. The survey has been conducted in Wenner-Schlumberger array. The result shows the sliding surface of landslide and also low resistivity value. These phenomena in landslide will indicate presence of high water content in the material which is the weak zone of the landslide.