Ruzina M. Regularities distribution and ore-bearing роlychronic metasomatites formations Middle Pridneprovie megablock in Ukrainian shield.

Dissertation is devoted to theoretical substantiation geological factors, which determine regularities distribution and ore-bearing of metasomatites formations within Middle Pridneprovie megablock in Ukranian shield. It is established that main factors for distribution and metasomatites formation are structural-tectonic, magmatical, lithology-реtrographical. Spatial relation telescopic ore-bearing metasomatites formations with junction deep faults intersection is showed. It is determined dual role metasomatism on depending deep fault system асtivization (роsitive for complex noble-metal, сорper-cobalt-gold, antimony-arsenic-zinc anomalies and negative for platinum-bearing chromitic formation and chrisotile-asbestos mineralization). Metalogeny specialization of different metasomatic formations are determined. Carbonaceous metasomatites which control noble metal mineralization ascertained in region for the first time.Тhe re-sults of investigations were inculcated into the practice of geological survey works and used for the wide list of tasks that are actual for modern geological researches.