Title

G. Yu. Proskurin

Metasomatites zone of articulation of the Karelian granite-greenstone domain area and Belo-morsky metamorphic belt

In article the composition, zonality, structure position, age and noble metal mineralization of Paleoproterozoic metasomatic rocks, formed on archaean volcanic and sedimentary formations tikshozero series North Karelian greenstone belt (Vinchensky and Khizovarsky greenstone structures) are considered. Metasomatic rocks are presented early acid (kyanite-quartz), basic (hornblehde-anthophyllite and pomegranate) and late acid (muscovite-quartz) metasomatic phase which united in one khizovarsky metasomatic complex. Used local U-Pb method dating (SHRIMP II, zircon) for metasomatic rocks was defined Paleoproterosoic age of formation. In structure position metasomatic rocks of the khizovarsky complex are located in active tectonic zones. In metasomatic rocks zones of sulphide mineralization has noble metal (Au, Ag) specialization.
Key words: Vinchensky structure, Khizovarsky structure, metasomatits, U-Pb method dating, noble metal mineralization.