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Home » Archive of journals » Volume 11, No. 2, 2021 » The nature of regional magnetic anomalies in the northeast of the Barents-Kara continental margin based on the results of seismic data interpretation

THE NATURE OF REGIONAL MAGNETIC ANOMALIES IN THE NORTHEAST OF THE BARENTS-KARA CONTINENTAL MARGIN BASED ON THE RESULTS OF SEISMIC DATA INTERPRETATION

JOURNAL: Volume 11, No. 2, 2021, p. 195-204

HEADING: Research activities in the Arctic

AUTHORS: Shipilov, E.V., Lobkovsky, L.I., Shkarubo, S.I.

ORGANIZATIONS: P. P. Shirshov Institute of Oceanology of the Russian Academy of Sciences, Polar Geophysical Institute of the Kola Scientific Center of RAS , JSC Marine Arctic Geological Expedition

DOI: 10.25283/2223-4594-2021-2-195-204

UDC: 55:551.242.2

The article was received on: 04.03.2021

Keywords: Severnaya Zemlya archipelago, magnetic anomaly, seismic sections, Arctic basin, Barents-Kara region, Svalbard platе, Franz Josef Land, St. Anna’s Trough, Kara platе, dyke belt

Bibliographic description: Shipilov, E.V., Lobkovsky, L.I., Shkarubo, S.I. The nature of regional magnetic anomalies in the northeast of the Barents-Kara continental margin based on the results of seismic data interpretation. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2021, vol. 11, no. 2, pp. 195-204. DOI: 10.25283/2223-4594-2021-2-195-204. (In Russian).


Abstract:

Based on the interpretation of seismic sections via seismic reflection method, the lines of which intersect the positive magnetic anomalies in the St. Anna Trough and on the North Kara Shelf, the authors have substantiated the position of the Early Cretaceous dike belt in the north of the Barents-Kara platform for the first time.

They traced the belt from the arch-block elevation of arch. Franz Josef Land, which belongs to the Svalbard platе through the Saint Anna Trough and further into the Kara platе to arch. Severnaya Zemlya. The distinguished dyke belt has discordant relationships with the structural-tectonic plan of the region under consideration. The authors illustrate the manifestations of dyke magmatism in the marked tectonic elements in seismic sections, and conclude that the dyke belt relates to the formation of the structural system of the Arctic basin.


Finance info: Работа выполнена при финансовой поддержке РФФИ в рамках научного проекта № 18-05-70012 «Развитие геодинамической модели эволюции литосферы Арктики в мезозое-кайнозое в связи с научным обоснованием заявки России в Комиссию ООН на установление внешней границы континентального шельфа Российской Федерации в Северном Ледовитом океане».

References:

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3. Shipilov E. V., Shkarubo S. I., Mityaev M. V. Tectonics of Franz Josef Land and the adjacent shelf. Proceedings of the Fersman Scientific Session of the Geological Institute KSC RAS, 2018, no. 15, pp. 396—400. (In Russian).

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© 2011-2021 Arctic: ecology and economy
DOI 10.25283/2223-4594