MINERALOGICAL MAPPING OF ORE-BEARING AREAS: GOALS, TECHNIQUES, APPLIED EFFECTIVENESS, COMPLETING. 4. MINERALOGICAL MAPPING OF ORE FIELDS

摘要

Results of mapping out the near-ore metasomatic haloes, veinlet-scattered and disseminated ore and nonmetalliferous mineralization are shown by examples of Beregovskoye gold-polymetallic and Natalkinskoye gold ore fields. On the base of these data the paper analyzes possibilities to contour the ore fields, to reveal details of their inner structure and stages of the mineral forming process, to elaborate criteria of predicting and prospecting for hidden ore bodies. For mineralogical surveying of the larger-scale ore-bearing areas (districts, provinces, etc.), it is recommended to use special techniques of the mapping carried out from methods elaborated by V. B. Brodin, E. A. Nyrkov, O. P. Ivanov, N. P. Yushkin et al.