Correlation between lithospheric magnetic anomalies and tectonic structures in the Norwegian-Greenland region of the Arctic
https://doi.org/10.5800/GT-2018-9-4-0388
Abstract
The studies of the deep structure and tectonics of the Arctic are important for solving the fundamental problems of modern geodynamics and developing its natural resources. This region is also of interest from the geopolitical point of view, in particular, considering the boundaries of the marginal seas. Our study aims to investigate the lithospheric (anomalous) geomagnetic field in the Norwegian-Greenland region of the Arctic and to correlate the identified anomalies with tectonic structures located in the region under study. The database includes the CHAMP satellite measurements of the modulus of the total geomagnetic field vector (the satellite operated at the altitude of ~280 km). This article describes the satellite data processing method applied to distinguish between the lithospheric part and other components of the geomagnetic field. Map showing the total vector modulus of the lithospheric field has been constructed for the studied area. The article discusses the possible nature of the lithospheric magnetic anomalies and their relation to the processes that occur under the territory of Greenland. According to our interpretation of the maps, the geomagnetic field anomalies are related to the modern large-scale geological and tectonic structures located in the studied area. The obtained results can facilitate further comprehensive geological and geophysical studies and contribute to modeling of the evolution of the lithosphere.
About the Authors
D. Yu. Abramova
N.V. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of RAS
Russian Federation
Russian Federation
Daria Yu. Abramova - Candidate of Physics and Mathematics, Senior Researcher.
4 KaluzhskoeHighway, Moscow, Troitsk 108840L. M. Abramova
Geoelectromagnetic Research Center of O.Yu. Schmidt Institute of Physics of the Earth of RAS
Russian Federation
Russian Federation
Ludmila M. Abramova - Candidate of Physics and Mathematics, Lead Researcher.
4 Kaluzhskoe Highway, Moscow, Troitsk 108840S. V. Filippov
N.V. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of RAS
Russian Federation
Russian Federation
Sergei V. Filippov - Candidate of Physics and Mathematics, Head of Laboratory.
4 Kaluzhskoe Highway, Moscow, Troitsk 108840
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For citations:
Abramova D.Yu., Abramova L.M., Filippov S.V. Correlation between lithospheric magnetic anomalies and tectonic structures in the Norwegian-Greenland region of the Arctic. Geodynamics & Tectonophysics. 2018;9(4):1163-1172. (In Russ.) https://doi.org/10.5800/GT-2018-9-4-0388
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