EXPLORATION AND EVALUATION TECHNIQUES FOR LOW RANK COAL DEPOSITS
Low Rank Coal in Indonesia
Low rank coals in Indonesia commonly occur in thick seams often greater than 20m thick. Such thick coal seams near the surface allows large scale mining, at low strip ratio, by conventional open-cut methods and provides the opportunity for economies of scale. Low rank coal is a proven source of fuel for power generation and new technologies will give additional opportunities for improving efficiencies of exploitation and utilization in the future.