Geology and lithostratigraphy of Pos Blau, Lojing, Gua Musang, Kelantan

The background of study area is mainly located at the Pos Blau, Lojing, Gua Musang itself and several area around it which has the the significance of lithostratigraphic unit. Generally, the study area had given to be covered in 5km x 5km (25 km²). The coordinate for the study area are within (N 04⁰ 47’ 26.7”, E 101⁰ 43’ 19.1”), (N 04⁰ 47’ 26.6”, E 101⁰ 42’ 2.4”), (N 04⁰ 44’ 45.1”, E 101⁰ 46’ 2.9”), (N 04⁰ 44’ 45.6”, E 101⁰ 43’ 18.5”) The main problem for this research there were several part of data at the study area of Pos Blau, Lojing, Gua Musang was did not fully completed and it is needed to remap the study area in order to get the full coverage of data for example, there was no information data of the road in each of the village road based on the geological information system. Thus, it needed to do the remap and corrected the scale of the study area. The objectives is to update the geological map of study area of Pos Blau, Lojing, Gua Musang in the scale of 1:25,000 and to identify the lithostratigraphy of Pos Blau, Lojing, Gua Musang.The method use generally field mapping, ArcGis software, Stereonet software, Georose software, thin section and petrography analysis. In conclusion, for the study area in Pos Blau, Lojing, Gua Musang, Kelantan there were several rocks identified from the youngest to the oldest such as conglomerate, limestone, mudstone, and interbedded of chert and tuff. The oldest rock in the study area are generally volcanic rock type such as tuff where it is estimated age at early Triassic. The carbonate rocks such as limestone where it is generally divided into two types of bedding which is well-bedded and thick-bedded limestone were found in the study area. Basically, in the well-bedded limestone it is generally to be found the presence of some fossils in it. But, unfortunately, from the observation in the field and observation under the microscope there was no presence of fossil detected from the rock sample that is taken from the study area. Furthermore, the age for the carbonate rock is estimated at Late Carboniferous to Middle Triassic. Moreover, there were also some siliclastic rocks such as mudstone which is aged about Carboniferous to Middle Triassic