Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints
The lithospheric and crustal structure of the Victoria Land continental block (Antarctica) has been studied by geological and geophysical surveys. Among them magnetovariational investigations (MV) have been addressed to highlight the deep electrical conductivity patterns which contribute to the unde...
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Istituto Nazionale di Geofisica e Vulcanologia, INGV
2000
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Online Access: | https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640 https://doi.org/10.4401/ag-3640 |
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ftjaog:oai:ojs.annalsofgeophysics.eu:article/3640 2023-05-15T13:54:52+02:00 Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints Armadillo, E. Ferraccioli, F. Bozzo, E. Caneva, G. Caneva, A. 2000-12-25 application/pdf https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640 https://doi.org/10.4401/ag-3640 eng eng Istituto Nazionale di Geofisica e Vulcanologia, INGV https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640/3695 https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640 doi:10.4401/ag-3640 Annals of Geophysics; V. 43 N. 2 (2000) Annals of Geophysics; Vol. 43 No. 2 (2000) 2037-416X 1593-5213 Magnetovariations electrical conductivity lithosphere 04.02.04. Magnetic and electrical methods info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2000 ftjaog https://doi.org/10.4401/ag-3640 2022-03-27T06:36:31Z The lithospheric and crustal structure of the Victoria Land continental block (Antarctica) has been studied by geological and geophysical surveys. Among them magnetovariational investigations (MV) have been addressed to highlight the deep electrical conductivity patterns which contribute to the understanding of continental rifting and tectonic setting of the region. The hypothetical event map for H linearly polarized perpendicular to the coast indicates a possible broad coast parallel conductivity anomaly zone. Despite the coast effect, this feature could be related to the deep upper mantle thermal anomaly leading to Cenozoic uplift of the Transantarctic Mountains rift flank. However, both the hypothetic event map polarized parallel to the coast and the induction arrows suggest that the area of enhanced conductivity may be confined to the Deep Freeze Range crustal block along the western flank of the Mesozoic Rennick Graben. We also discuss the possible association between increased conductivity over the Southern Cross block and extensive Cenozoic alkaline plutonism. Article in Journal/Newspaper Antarc* Antarctica Victoria Land Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) Victoria Land Transantarctic Mountains Rennick ENVELOPE(161.500,161.500,-72.000,-72.000) Deep Freeze Range ENVELOPE(163.750,163.750,-74.250,-74.250) Annals of Geophysics 43 2 |
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Open Polar |
collection |
Annals of Geophysics (INGV, Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftjaog |
language |
English |
topic |
Magnetovariations electrical conductivity lithosphere 04.02.04. Magnetic and electrical methods |
spellingShingle |
Magnetovariations electrical conductivity lithosphere 04.02.04. Magnetic and electrical methods Armadillo, E. Ferraccioli, F. Bozzo, E. Caneva, G. Caneva, A. Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
topic_facet |
Magnetovariations electrical conductivity lithosphere 04.02.04. Magnetic and electrical methods |
description |
The lithospheric and crustal structure of the Victoria Land continental block (Antarctica) has been studied by geological and geophysical surveys. Among them magnetovariational investigations (MV) have been addressed to highlight the deep electrical conductivity patterns which contribute to the understanding of continental rifting and tectonic setting of the region. The hypothetical event map for H linearly polarized perpendicular to the coast indicates a possible broad coast parallel conductivity anomaly zone. Despite the coast effect, this feature could be related to the deep upper mantle thermal anomaly leading to Cenozoic uplift of the Transantarctic Mountains rift flank. However, both the hypothetic event map polarized parallel to the coast and the induction arrows suggest that the area of enhanced conductivity may be confined to the Deep Freeze Range crustal block along the western flank of the Mesozoic Rennick Graben. We also discuss the possible association between increased conductivity over the Southern Cross block and extensive Cenozoic alkaline plutonism. |
format |
Article in Journal/Newspaper |
author |
Armadillo, E. Ferraccioli, F. Bozzo, E. Caneva, G. Caneva, A. |
author_facet |
Armadillo, E. Ferraccioli, F. Bozzo, E. Caneva, G. Caneva, A. |
author_sort |
Armadillo, E. |
title |
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
title_short |
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
title_full |
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
title_fullStr |
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
title_full_unstemmed |
Assessment of deep electrical conductivity features of Northern Victoria Land (Antarctica) under other geophysical constraints |
title_sort |
assessment of deep electrical conductivity features of northern victoria land (antarctica) under other geophysical constraints |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia, INGV |
publishDate |
2000 |
url |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640 https://doi.org/10.4401/ag-3640 |
long_lat |
ENVELOPE(161.500,161.500,-72.000,-72.000) ENVELOPE(163.750,163.750,-74.250,-74.250) |
geographic |
Victoria Land Transantarctic Mountains Rennick Deep Freeze Range |
geographic_facet |
Victoria Land Transantarctic Mountains Rennick Deep Freeze Range |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_source |
Annals of Geophysics; V. 43 N. 2 (2000) Annals of Geophysics; Vol. 43 No. 2 (2000) 2037-416X 1593-5213 |
op_relation |
https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640/3695 https://www.annalsofgeophysics.eu/index.php/annals/article/view/3640 doi:10.4401/ag-3640 |
op_doi |
https://doi.org/10.4401/ag-3640 |
container_title |
Annals of Geophysics |
container_volume |
43 |
container_issue |
2 |
_version_ |
1766261007313797120 |