FEATURES OF THE DEVELOPMENT OF PLACER GOLD DEPOSITS IN MODERN CONDITIONS

The article considers influence of features of structure of placer deposits and distribution of useful components in them on efficiency of resource-saving extraction of reserves of valuable mineral raw materials. It is shown that, taking into account the cluster organization of the productive thickness of gold-containing sands, the error of geometrization for some areas of work may exceed 100%. Estimation errors have been determined, approaches that can be used in the management of exploration processes have been shown, production and enrichment. It has been shown that among the main reasons for errors in estimating reserves are the inaccuracy of determination of morphology and structure of the deposit, primarily its width, as well as the content of gold in sands.