Gold-silver, gold, and gold-bearing deposits ofthe Pre-Cambrian protrusions setting ofthe Argun superterrain(Transbaikal and Upper Priamurye areas): geological position, structure, and features of substance composition

Precious-metal nodes and districts (Lyubavinsky, Baleisky, Kariisky, Gonzhinsky), known on the northern margin of the Argun' superterrain, are localized in the setting of the large protrusions of the Pre-Cambrian basement within the chamber-dome structures that were formed over a long period of time and are clearly defined in the geophysical fields. Gold deposits usually occur in the areas of joint of the Jurassic-Cretaceous granitoid massifs and subvolcanic bodies with the Late Mesozoic volcanotectonic depressions. Thecombination of the granitoid massifs, the subvolcanic and extrusive bodies, and the stratified effusive-pyroclastic accumulations along the areals of the rock metasomatic alterations and the placers and ore occurrences of gold are important searching-valuation indications of the precious-metal ore-magmatic systems. A comprehensive use of such indications makes it possible to locate the areas for the extended revision and forecasting-searching works in the poorly studied ore-placer districts.

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