Pikarenya D. Silver In The Byelozerskaya Greenstone Structure Of The Ukrainian Shield.

Dissertation is devoted to study of geology silver mineralization and geochemical features of silver behavior in Archean Belozerskaya greenstone structure. The concluded research allow to establish the medium contents of silver in a different types of rocks and to determine a local background. Besides that great number of anomalies and ore-displays for silver were determined. Two different-times kinds of silver mineralization were picked out: the complex type (silver with a touch of gold, platinum and palladium) and gold-silver type with leading role of silver. Both types are combined in limits of common facies zones. The complex type relates to scarcely-sulfide gold-sulfide-quarts formation and it is characterized by hydrothermal-metasomatitic way of matter deposits. The gold-silver type related to gold-silver-sulfide formation with hydrothermal-secretional way of matter deposits.