MINERAGENY OF THE PRECAMBRIAN ULTRABASIC-BASIC VOLCANIC-INTRUSIVE COMPLEXES OF THE VARIOUS GEODYNAMIC REGIMES OF FORMATION OF THE CONTINENTAL CRUST OF THE VCM (CENTRAL RUSSIA) Article 2. Composition and minerageny of the volcano-intrusive high-magnesium formations of the Late Archaean geodynamic cycle of the formation of the continental crust of the VCM
WE PRESENT THE CYCLE OF ARTICLES, EXPLAINING THE EVOLUTION OF THE HIGH-MAGNESIUM FORMATIONS OF VARIOUS GEODYNAMIC REGIMES OF THE PRECAMBRIAN OF THE VCM MEGABLOCK BECAUSE OF THEIR ORE-BEARING ROLE. SECOND PART OF THE RESEARCH OF THE MINERAGENY OF THE PRECAMBRIAN HIGH-MAGNESIUM FORMATIONS ARE DEDICATED TO LATER ARCHAEAN ROCKS OF THE KM A MEGABLOCK. TYPICAL MINERALOGICAL-PETRO GRAPHICAL, PETROCHEMICAL AND О RE-GEO CHEMICAL FEATURES OF THE VOLCANO- INTRUSIVE ASSOCIATIONS, THAT ARE DETERMINED WITH CLOSE TO PRIMITIVE MANTLE AND MANTLE-CRUSTAL NATURE OF THE MAGMA CHAMBERS ON THE STAGE OF THE LATER ARCHAEAN ENSIALIC RIFTING ARE GIVEN. THE MOST PERPECTIVE FOR CR, NI, PGE AND AU ORE-BEARING SYSTEMS ARE REVIEWED.