Dyke magmatism in the evolution of the transform active continental margin of the Siberian Craton in the Ediacaran

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Abstract


An Ediacaran complex of dyke rocks has been identified for the first time in the Yenisei Ridge orogen. These igneous rocks are represented by basic, intermediate and acid variants and formed in the conditions of the transform active continental margin at the stages of its development before and during the interruption of subduction and slab breakoff: from dykes of the picrodolerite - ​dolerite-quartz diorite - leucogranite association with age in the range of 626-623 Ma (U-Th-U isotope data for zircons, SHRIMP-II method, this work) up to adakite - gabbro-anorthosite magmatism at the end of the Ediacaran.


About the authors

A. E. Vernikovskaya

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

V. A. Vernikovsky

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Author for correspondence.
Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

Academician of the Russian Academy of Science

N. Yu. Matushkin

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

P. I. Kadilnikov

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

D. V. Metelkin

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

Z. X. Li

Curtin University

Email: VernikovskyVA@ipgg.sbras.ru

Australia, Kent Street, Bentley, Perth, Western Australia, 6102

S. A. Wilde

Curtin University

Email: VernikovskyVA@ipgg.sbras.ru

Australia, Kent Street, Bentley, Perth, Western Australia, 6102

I. V. Romanova

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

E. A. Bogdanov

Trofimuk Institute of Petroleum Geology and Geophysics Sibirian Branch of the Russian Academy of Sciences; Novosibirsk State University

Email: VernikovskyVA@ipgg.sbras.ru

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090

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