Mapping of Gold In Densely Vegetated Area Using Remote Sensing and GIS Techniques in Pahang, Malaysia

摘要

The study was carried out for identifying a prospect area for gold (Au) in Penjom Merapoh, Pahang using remote sensing and GI S techniques. Remotely sensed data including Landsat TM and Radarsat were useful in extracting regional lineament, local fracture patterns, hydrotherm ally altered rocks as well as providing basic geologic data. Furthermore, airborne radiom etric datasets consist of thorium (Th), uranium (U) and potassium (K) were analysed in order to identify the different style of mineralisation as well as to delineate granite bodies. By inte rpreting K count, alteration associated with mineralisation produces potassium anomalies can be distinguished from particular rocks. The rocks were then taken into account for gold modelling. Statistical analysis of associated elements such as arsenic (As), wolfrum (W), lead (Pb) and cuprum (Cu) were also considered for formulating a model of high prospect area of gold. Each class factor was assigned weightage accordingly based on knowledge and field observation using GIS package. It is found that the abundance of gold not only m apped in the proven location but also extend to the 'untouch' area.