The chapters in this volume cover a wide range of activities in the field of mineral resource evaluation. Methods that are currently in use to evaluate mineral resources are described, including exploration drilling, sampling, resource estimation, mine design, financial evaluation and mine sampling and grade control. The volume also gives case histo…
Coal-rich Tertiary sediments of the ombilin II coal field,west sumatra occur within a structurally complex foult bounded graben formed as a resoult of subduction of the pacific plate beneath sumatra.tectonic activity associated with foult movement appears to have influenced the caracter of the coal seams.grouth foulting my be responsible for areas o…