General geology and the use of gis in urban analysis of Dabong, Kuala Krai Kelantan

Dabong is a one of the area that undergoes the urbanization process. The Dabong Town has a potential to become an urban area in the future. The study area are located between the latitude (05 °21’ 30’’ N to 05° 24’ 0’’ N) and longitude (102° 0’ 0’’ E to 102° 02’ 00’’ E) where is located in the center of the Dabong District. The main objective of this research is to update a geological map of the Dabong area. Another objective is to identify the geo-hazard in the study area for urban analysis and to provide the safety map for settlement in the urban area. Problem statement of this research is no recent map for a specific area in Dabong area. The hazard map of the Dabong area a not provided and have a some guideline that need to follow before open a new area. Objective can be achieve by doing a few method that need to applied such as geological mapping, petrography analysis, and using the Geological Information System (GIS) application. Geological mapping is the most important method to collect the data such as lithology, structural, geomorphology and stratigraphy from study area. From the observation and research, the lithology of the study area are consists of the acid to intermediate volcanic and inter-bedded sedimentary rock. The type of lithology is granodiorite, alluvium, phyllite, limestone and andesite. The geological structural in the study area are recumbent fold, foliation and minor normal fault. Petrography analysis can help to identify the type of rock by observe the mineral on the rock sample. The GIS application can be use to digitizing and classifying the status area at the Dabong area. As the result, they have two type of hazard such as flood and landslide. Location of the geo-hazard was determined and hazard map was produced by using the GIS application. In conclusion, a suitable are for urban area also determined and area was selected because it quick far from river and secure from flood. Recommendation, more research can be conducted in future but using a new method. A suggestion method is using a SagaGIS application and Electrical Resistivity Image (ERI) method to investigate the factor of landslide in more detail.