Questions of a geologo-economic assessment of minerals at a stage of small-scale searches of fields are considered. Offered innovative mechanisms allow to carry out operatively an appraisal of resources within the studied area for any sites, the sizes and which situation is defined by geological or economic requirements. Principles of an assessment of investment appeal of the revealed resources are offered.

The problem of rational use of natural resources in prospecting, mining and processing of minerals is considered as a task of improving the efficiency of environmental management at all its stages: from prospecting and evaluation of deposits to the write-off of reserves during their development. The prospecting and appraisal stage in this scheme seems to be the most important due to the significant geological and economic risks involved in such works. The implementation of a rational approach to environmental management in the conditions of market relations is based on the strategy of cost optimization for prospecting and appraisal geological and exploration works, which is impossible without the use of modern information technologies.

Geochemical criteria are established on the example of one of the fields in Yakutia. Climatic conditions predetermined the widespread development in the area of permafrost up to a depth of 300 m.

Fundamental studies of Y.A.Bilibin, V.N.Zverev, A.I.Kuks, A.I.Kazarinov, N.V.Petrovskaya and other scientists are devoted to the issues of gold mineralization location in Central Aldan. With some disagreements on the conditions of formation, connection with lithology, tectonics, magmatism, most researchers unconditionally recognize the gyzrothermal-metasomatic nature of gold mineralization of the area and the connection of the latter with the Mesozoic activation of the shield ...