General Geology of Dabong and Rock Coating as a Record of Environmental Changes

Forming of ambiguous layer on a rock that was found in an area. The layer has a distinctive mineral compare with the layer inside the rock. This rock layer that coats the inner rock is called as rock coating. This phenomenon is undergoing worldwide in all over the regimes. It happens in tropical, subtropical, Mediteranean environment and even in desert. Each of this environment give different types of coating because it depends on the behavioral of the mineral upon a region. In Malaysia, rock coating is less to be venture among the geologists even though rock coating can record the past paleo environment of an area. In this thesis, a study on the rock coating occurring in Tanah Merah and Jeli as a representative sample area of Kelantan to be analyse and do comparison to differentiate each types of coating as a rock layer on the sample. The scopes of the sample are based on the rock that contains data on its composite elements from the information on the X-Ray Flourescence (XRF) analysis done by previous researches. This method helps to identified the composition and percentage of the mineral on a specific sample. From these data, review of these types of coating is done to know each attribute characteristics shown by different coating in term of colour, mineral composition, physical properties and weathering rates. Lastly, the main findings of these data where state and elaborate in the discussion to helps in recognize types of coating better.