Geology and karst geomorphology of Gua Musang, Kelantan

This study focused on the geological mapping of the Gua Musang area and karst geomorphologic of Gua Musang cave that being one of the indicators about the en\ ironmental history and landscape evolution. This cave has been categorized as a mature cave by referring to their geomorphological characteristic that influences their features. Gua Musang is a city located at the south of Kelantan bordering with Merapoh Pahang. The local karst, named Gua Musang Cave has unique advantages due to their shape and geomorphologic process. In this cave. there are many favourable conditions for the process of karstization to strongly develop, such as rainfall, rich organic acids, abundant of acid and also a lot of carbon dioxide. However, the karstization process greatly depends on the thickness of the cave, characteristics of the cave, geological structure such as joint, fault and bedding, characteristics, and also the topographic movements such as watersheds area, channels. Besides, the karstization also strongly depends on the climate of the area. Gua Musang composed of five types of lithologies which are limestone unit, interbedded sandstone, siltstone and shale unit, phyllite. slate and shale with subordinate with sandstone and schist unit, felsic unit and also alluvium unit. All of these lithologies are grouped in Paleozoic and Mesozoic era.