Adakite-gabbro-anorthosite magmatism at the final (576-546 Ma) development stage of the Neoproterozoic active margin in the south-west of the Siberian craton

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Авторы: Vernikovskaya A.E.   (ИНГГ СО РАН)   Vernikovsky V.A.   (ИНГГ СО РАН)   Matushkin N.Y.   (ИНГГ СО РАН)   Kadilnikov P.I.   (ИНГГ СО РАН)   Romanova I.V.   (ИНГГ СО РАН)   Larionov A.N.    
дата публикации: 2017
In the late Neoproterozoic a prolonged active continental margin mode dominated the southwestern margin of the Siberian craton. Based on results of geological, petrological-geochemical, U-Th-Pb and Sm-Nd, Rb-Sr isotope investigations, for the first time we established that on the final evolution stage of this margin 576-546 Ma, intrusions of adakites and gabbro-anorthosites of the Zimoveyniy massif were emplaced in the South Yenisei Ridge. These new data indicate genetic relationships of the studied adakites and host NEB-metabasites. The formation of adakites could have been due to a crustal or a mantle-crustal source in a setting of transform sliding of lithospheric plates after the subduction stopped.
первоисточник: Doklady Earth Sciences
том: 2
страницы: 1402-1407
внешние ссылки:
WoS   WoS (цитирование)






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