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Information × Registration Number 0211U005709, 0111U005444 , R & D reports Title Early Precambrian supracrustal terrains of the Ukrainian and Baltic shields as indicators of main stages and geodynamic conditions of formation of continental crust of the East European platform basement in the Archean and Palaeoproterozoic popup.stage_title Head Bobrov Olexandr Borysovych, Registration Date 22-12-2011 Organization M.P. Semenenko Institute of Geochemistry, mineralogy and Ore Formation popup.description2 Main results of geologic-geochemical study of Mesoarchean metakomatiites in the Middle Dnipro and West Priazov greenstone regions are: methods of petrography diagnostics and restoration of primary komatiitic fabric is developed; three levels of layered metakomatiitic flows were established in greenstone stratigraphic sections of the Middle Dnipro and one that - in the Western Priazov region; it is supposed that generation of komatiitic and toleitic magma was resulted mantle and plume processes. Komatiitic melts were formed at the depth of 250-300км that exceeds values for Baltic shield plumes; partial intermixtures komatiitic magma with enriched mantle and crustal componenets were revealed. The effusion of komatiitic lava on the Earth surface was realized under conditions of specific continental rifting. Product Description popup.authors Бобров Олександр Борисович Степанюк Леонід Михайлович Сукач Віталій Васильович Яськевич Тетяна Богданівна popup.nrat_date 2020-04-02 Close