Classification of mineral resources and ore reserves / Классификация минеральных ресурсов и рудных запасов

Classification of Mineral Resources and Ore Reserves is an essential component of Resource/Reserve estimation, and is one of the most important responsibilities of the Competent Person. When carried out appropriately, it accurately conveys the Competent Person’s confidence in the estimates to those who need to make decisions which depend on the estimates, but who have less familiarity with the deposit than the Competent Person. When carried out inappropriately, it can have disastrous effects on mine planning and investment decisions. Too often these days, classification decisions are based strictly on statistical parameters which are generated during the estimation process without taking into account a number of factors which can have overwhelming effects of confidence in estimation. The most important of these are confidence in the geological interpretation, and the quality of Resource delineation data. A fundamental principle in all Resource/Reserve classification decisions is the over-riding need to apply common sense. <...>