Design features of the Franz Josef Land volcanic provinces (Arctic Ocean): estimation of lava direction by anisotropy of magnetic susceptibility

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Abstract


The paper presents the first results of studying the anisotropy of magnetic susceptibility in the basalts from Hooker Island, associated with the direction of the melt movement, the location of the eruption centers and the morphology of magmatic bodies. The established features of the primary magnetic fabrics correspond to the trap mechanism of formation of the volcanic province of the Franz Josef Land Archipelago and are a reflection of the simultaneous action of numerous small eruption centers. Previously obtained conclusions about the long, during the Early Jurassic - Early Cretaceous, multi-stage history of magmatism are not confirmed.


About the authors

V. V. Abashev

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

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

Russian Federation, 3, Koptyg prosrect, Novosibirsk, 630090, Russian Federation; 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

Email: abashevvv@ipgg.sbras.ru

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

Academician of the Russian Academy of Sciences

A. Yu. Kazansky

Lomonosov Moscow State University

Email: abashevvv@ipgg.sbras.ru

Russian Federation, 1, Leninskie gory, Moscow, 119991

D. V. Metelkin

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

Email: abashevvv@ipgg.sbras.ru

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

N. E. Mikhaltsov

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

Email: abashevvv@ipgg.sbras.ru

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

V. Yu. Bragin

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

Email: abashevvv@ipgg.sbras.ru

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

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