gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2018-9-4-0388gtcrust-671Research ArticleСОВРЕМЕННАЯ ГЕОДИНАМИКАRECENT GEODYNAMICSКОРРЕЛЯЦИЯ ЛИТОСФЕРНЫХ МАГНИТНЫХ АНОМАЛИЙ И ТЕКТОНИЧЕСКИХ СТРУКТУР В НОРВЕЖСКО-ГРЕНЛАНДСКОЙ ЧАСТИ АРКТИКИCORRELATION BETWEEN LITHOSPHERIC MAGNETIC ANOMALIES AND TECTONIC STRUCTURES IN THE NORWEGIAN-GREENLAND REGION OF THE ARCTICАбрамоваД. Ю.AbramovaD. Yu.

Дарья Юрьевна Абрамова - кандидат физико-математических наук, старший научный сотрудник.

108840, Москва, Троицк, Калужское шоссе, 4

Daria Yu. Abramova - Candidate of Physics and Mathematics, Senior Researcher.

4 KaluzhskoeHighway, Moscow, Troitsk 108840

abramova@izmiran.ruАбрамоваЛ. М.AbramovaL. M.

Людмила Мамиконовна Абрамова - кандидат физико-математических наук, ведущий научный сотрудник.

108840, Москва, Троицк, Калужское шоссе, 4

Ludmila M. Abramova - Candidate of Physics and Mathematics, Lead Researcher.

4 Kaluzhskoe Highway, Moscow, Troitsk 108840

ludabr50@mail.ruФилипповС. В.FilippovS. V.

Сергей Витальевич Филиппов - кандидат физико-математических наук, зав.едующий лабораторией.

108840, Москва, Троицк, Калужское шоссе, 4

Sergei V. Filippov - Candidate of Physics and Mathematics, Head of Laboratory.

4 Kaluzhskoe Highway, Moscow, Troitsk 108840

sfilip@izmiran.ruИнститут земного магнетизма, ионосферы и распространения радиоволн им. Н.В. Пушкова РАНРоссияN.V. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of RASRussian FederationЦентр геоэлектромагнитных исследований Института физики Земли им. О.Ю. Шмидта РАНРоссияGeoelectromagnetic Research Center of O.Yu. Schmidt Institute of Physics of the Earth of RASRussian Federation2018081220189411631172Copyright © Абрамова Д.Ю., Абрамова Л.М., Филиппов С.В., 20182018Абрамова Д.Ю., Абрамова Л.М., Филиппов С.В.Abramova D.Y., Abramova L.M., Filippov S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/671

Изучение глубинного строения и тектоники Арктики актуально для решения фундаментальных проблем современной геодинамики, освоения ее природных ресурсов, а также представляет интерес с геополитической точки зрения, в частности для определения границ шельфов окраинных морей. Цель настоящей работы – изучение литосферного (аномального) геомагнитного поля на территории норвежско-гренландской части Арктики и сопоставление выявленных аномалий с тектоническими структурами исследуемого региона. В качестве экспериментальных данных использовались измерения модуля полного вектора геомагнитного поля спутником CHAMP на высоте ~280 км. В работе описана методика обработки спутниковых данных с целью отделения литосферной части от остальных составляющих геомагнитного поля. В результате построена карта модуля полного вектора литосферного поля для исследуемой территории. Рассмотрена возможная природа литосферных магнитных аномалий и их связь с процессами, происходящими под территорией Гренландии. Интерпретация полученных карт показывает, что аномалии геомагнитного поля связаны с современными крупномасштабными геолого-тектоническими структурами исследуемой области. Полученные результаты представляют существенный интерес для дальнейших комплексных геолого-геофизических исследований и построения обоснованных моделей эволюции литосферы.

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.

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