Отправить статью по E-mail New Isotope Constraints on the Time of Formation of the Nersa Dolerite Complex from the Biryusa–Sayan Area
- Авторы: Vasyukova E.A.1,2, Metelkin D.V.2,3, Letnikov F.A.4, Letnikova E.F.1
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Учреждения:
- Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Novosibirsk State University
- Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
- Institute of the Earth’s Crust
- Выпуск: Том 485, № 2 (2019)
- Страницы: 363-367
- Раздел: Geology
- URL: https://ogarev-online.ru/1028-334X/article/view/194775
- DOI: https://doi.org/10.1134/S1028334X19040172
- ID: 194775
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Аннотация
New data on the Sm–Nd isotopic composition of the dolerites of the Nersa complex that are consistent with the petrographic study and the U–Pb dating of detrital zircon from the overlying sedimentary sequences of the Biryusa–Sayan area are presented. The data obtained indicate the absence of the supposed magmatic event 1.6 billion years ago and clearly indicate the Neoproterozoic age of the intrusions. Their source could have been the metasomatized mantle; dolerites went through several stages of metasomatism during their formation, which was reflected in the evolution of its isotopic systems.
Об авторах
E. Vasyukova
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
Автор, ответственный за переписку.
Email: lenav@inbox.ru
Россия, Novosibirsk, 630090; Novosibirsk, 630090
D. Metelkin
Novosibirsk State University; Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
Email: lenav@inbox.ru
Россия, Novosibirsk, 630090; Novosibirsk, 630090
F. Letnikov
Institute of the Earth’s Crust
Email: lenav@inbox.ru
Россия, Irkutsk, 664033
E. Letnikova
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: lenav@inbox.ru
Россия, Novosibirsk, 630090
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