Аннотация
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.
Язык оригинала | английский |
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Страницы (с-по) | 1402-1407 |
Число страниц | 6 |
Журнал | Doklady Earth Sciences |
Том | 477 |
Номер выпуска | 2 |
DOI | |
Состояние | Опубликовано - 1 дек 2017 |