Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula
The study aims to analyze the results of long-term tectonomagnetic observations on the Antarctic tectonomagnetic polygon in the region of the Akademik Vernadsky station to investigate the current geodynamics at the West Coast of the Antarctic Peninsula. The data (1998—2020) were collected as regular...
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State Institution National Antarctic Scientific Center
2022
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Online Access: | https://doi.org/10.33275/1727-7485.1.2022.685 https://doaj.org/article/321a974491dd4a35a4abb6dbe41d678b |
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ftdoajarticles:oai:doaj.org/article:321a974491dd4a35a4abb6dbe41d678b 2023-05-15T13:49:09+02:00 Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula V. Maksymchuk I. Chobotok R. Kuderavets Ye. Nakalov N. Pyrizhok O. Pavlyuk L. Yanush 2022-09-01T00:00:00Z https://doi.org/10.33275/1727-7485.1.2022.685 https://doaj.org/article/321a974491dd4a35a4abb6dbe41d678b EN UK eng ukr State Institution National Antarctic Scientific Center https://doaj.org/toc/1727-7485 https://doaj.org/toc/2415-3087 doi:10.33275/1727-7485.1.2022.685 1727-7485 2415-3087 https://doaj.org/article/321a974491dd4a35a4abb6dbe41d678b Український антарктичний журнал, Vol 20, Iss 1, Pp 3-17 (2022) monitoring seismic activity tectonic stress tectonomagnetic anomalies Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2022 ftdoajarticles https://doi.org/10.33275/1727-7485.1.2022.685 2022-12-30T22:56:12Z The study aims to analyze the results of long-term tectonomagnetic observations on the Antarctic tectonomagnetic polygon in the region of the Akademik Vernadsky station to investigate the current geodynamics at the West Coast of the Antarctic Peninsula. The data (1998—2020) were collected as regular discrete geomagnetic measurements. They were used to study the temporal changes of the local magnetic field between the observation epochs and tectonomagnetic anomalies. We create a temporal series of the changes in the local magnetic field for every point of the observation network on the polygon and provide the map of tectonomagnetic anomalies over different observation periods. The tectonomagnetic anomalies of 2.0—2.8 nT · year–1 were found in the Argentine Islands region. The anomalies’ spatial structure agrees with elements of the tectonic structure of the Earth crust. We studied the spatial-temporal connection of the tectonomagnetic anomalies with the region seismicity and estimated the values of tectonic stresses in the lithosphere within the piezomagnetic mechanism. The spatial-temporal structure of tectonomagnetic anomalies in the region shows the response of the geological environment to the change in the tectonic stresses in the local crust. Based on the theoretical calculations and other geological and geophysical data, we conclude that a piezomagnetic effect causes the anomalies under the action of stretching tectonic stresses (~1 bar · year–1) in the sub-latitudinal direction. Given the urgency of discovering the seismotectonic processes and current regional dynamics, the tectonomagnetic observations on the polygon should be continued as a yearly monitoring program, including other methods of geophysics and geodesy. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Argentine Islands Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula Argentine Argentine Islands ENVELOPE(-64.273,-64.273,-65.246,-65.246) Vernadsky Station ENVELOPE(-64.257,-64.257,-65.245,-65.245) Akademik Vernadsky Station ENVELOPE(-64.256,-64.256,-65.246,-65.246) Ukrainian Antarctic Journal 20 1(24) 3 17 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Ukrainian |
topic |
monitoring seismic activity tectonic stress tectonomagnetic anomalies Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
monitoring seismic activity tectonic stress tectonomagnetic anomalies Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 V. Maksymchuk I. Chobotok R. Kuderavets Ye. Nakalov N. Pyrizhok O. Pavlyuk L. Yanush Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
topic_facet |
monitoring seismic activity tectonic stress tectonomagnetic anomalies Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
The study aims to analyze the results of long-term tectonomagnetic observations on the Antarctic tectonomagnetic polygon in the region of the Akademik Vernadsky station to investigate the current geodynamics at the West Coast of the Antarctic Peninsula. The data (1998—2020) were collected as regular discrete geomagnetic measurements. They were used to study the temporal changes of the local magnetic field between the observation epochs and tectonomagnetic anomalies. We create a temporal series of the changes in the local magnetic field for every point of the observation network on the polygon and provide the map of tectonomagnetic anomalies over different observation periods. The tectonomagnetic anomalies of 2.0—2.8 nT · year–1 were found in the Argentine Islands region. The anomalies’ spatial structure agrees with elements of the tectonic structure of the Earth crust. We studied the spatial-temporal connection of the tectonomagnetic anomalies with the region seismicity and estimated the values of tectonic stresses in the lithosphere within the piezomagnetic mechanism. The spatial-temporal structure of tectonomagnetic anomalies in the region shows the response of the geological environment to the change in the tectonic stresses in the local crust. Based on the theoretical calculations and other geological and geophysical data, we conclude that a piezomagnetic effect causes the anomalies under the action of stretching tectonic stresses (~1 bar · year–1) in the sub-latitudinal direction. Given the urgency of discovering the seismotectonic processes and current regional dynamics, the tectonomagnetic observations on the polygon should be continued as a yearly monitoring program, including other methods of geophysics and geodesy. |
format |
Article in Journal/Newspaper |
author |
V. Maksymchuk I. Chobotok R. Kuderavets Ye. Nakalov N. Pyrizhok O. Pavlyuk L. Yanush |
author_facet |
V. Maksymchuk I. Chobotok R. Kuderavets Ye. Nakalov N. Pyrizhok O. Pavlyuk L. Yanush |
author_sort |
V. Maksymchuk |
title |
Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
title_short |
Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
title_full |
Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
title_fullStr |
Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
title_full_unstemmed |
Results of long-term tectonomagnetic research in the Akademik Vernadsky station region, the West Coast of the Antarctic Peninsula |
title_sort |
results of long-term tectonomagnetic research in the akademik vernadsky station region, the west coast of the antarctic peninsula |
publisher |
State Institution National Antarctic Scientific Center |
publishDate |
2022 |
url |
https://doi.org/10.33275/1727-7485.1.2022.685 https://doaj.org/article/321a974491dd4a35a4abb6dbe41d678b |
long_lat |
ENVELOPE(-64.273,-64.273,-65.246,-65.246) ENVELOPE(-64.257,-64.257,-65.245,-65.245) ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Argentine Argentine Islands Vernadsky Station Akademik Vernadsky Station |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Argentine Argentine Islands Vernadsky Station Akademik Vernadsky Station |
genre |
Antarc* Antarctic Antarctic Peninsula Argentine Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Argentine Islands |
op_source |
Український антарктичний журнал, Vol 20, Iss 1, Pp 3-17 (2022) |
op_relation |
https://doaj.org/toc/1727-7485 https://doaj.org/toc/2415-3087 doi:10.33275/1727-7485.1.2022.685 1727-7485 2415-3087 https://doaj.org/article/321a974491dd4a35a4abb6dbe41d678b |
op_doi |
https://doi.org/10.33275/1727-7485.1.2022.685 |
container_title |
Ukrainian Antarctic Journal |
container_volume |
20 |
container_issue |
1(24) |
container_start_page |
3 |
op_container_end_page |
17 |
_version_ |
1766250913236779008 |