Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica)
A Geomagnetic Depth Sounding profile was performed across the glaciated Rennick Graben and the adjacent fault-bounded terranes of northern Victoria Land in East Antarctica. Induction arrows analysis and a 2D inversion model provide a unique deep electrical resistivity window beneath these fault zone...
Published in: | Geophysical Research Letters |
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Language: | English |
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Online Access: | http://hdl.handle.net/11567/246723 https://doi.org/10.1029/2004GL019903 |
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ftunivgenova:oai:iris.unige.it:11567/246723 2024-02-11T09:57:29+01:00 Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) ARMADILLO, EGIDIO BOZZO, EMANUELE FERRACCIOLI F. TABELLARIO G. Armadillo, Egidio Ferraccioli, F. Tabellario, G. Bozzo, Emanuele 2004 STAMPA http://hdl.handle.net/11567/246723 https://doi.org/10.1029/2004GL019903 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000221910200004 volume:31 firstpage:1 lastpage:4 numberofpages:4 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11567/246723 doi:10.1029/2004GL019903 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-4143102445 info:eu-repo/semantics/article 2004 ftunivgenova https://doi.org/10.1029/2004GL019903 2024-01-24T17:39:07Z A Geomagnetic Depth Sounding profile was performed across the glaciated Rennick Graben and the adjacent fault-bounded terranes of northern Victoria Land in East Antarctica. Induction arrows analysis and a 2D inversion model provide a unique deep electrical resistivity window beneath these fault zones. The electrical resistivity break across the Lanterman Fault is apparently restricted to the upper crust, suggesting that this strike-slip fault may not represent a deep lithospheric suture. Further east, a westward-dipping conductor is traced to a depth of 40 km beneath the Robertson Bay Terrane. It may image a remnant of the paleo-Pacific oceanic plate, which subducted beneath the Bowers Terrane. Within the Wilson Terrane, the Rennick Graben is an upper-crust resistive block. The Rennick Graben lacks a deep crustal or upper mantle conductor, in contrast to several continental rifts. However, similar resistive lower crust underlies some other major strike-slip fault belts. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Victoria Land Università degli Studi di Genova: CINECA IRIS Bowers ENVELOPE(164.083,164.083,-85.000,-85.000) East Antarctica Pacific Rennick ENVELOPE(161.500,161.500,-72.000,-72.000) Robertson Bay ENVELOPE(170.000,170.000,-71.417,-71.417) Victoria Land Geophysical Research Letters 31 10 n/a n/a |
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Open Polar |
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Università degli Studi di Genova: CINECA IRIS |
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ftunivgenova |
language |
English |
description |
A Geomagnetic Depth Sounding profile was performed across the glaciated Rennick Graben and the adjacent fault-bounded terranes of northern Victoria Land in East Antarctica. Induction arrows analysis and a 2D inversion model provide a unique deep electrical resistivity window beneath these fault zones. The electrical resistivity break across the Lanterman Fault is apparently restricted to the upper crust, suggesting that this strike-slip fault may not represent a deep lithospheric suture. Further east, a westward-dipping conductor is traced to a depth of 40 km beneath the Robertson Bay Terrane. It may image a remnant of the paleo-Pacific oceanic plate, which subducted beneath the Bowers Terrane. Within the Wilson Terrane, the Rennick Graben is an upper-crust resistive block. The Rennick Graben lacks a deep crustal or upper mantle conductor, in contrast to several continental rifts. However, similar resistive lower crust underlies some other major strike-slip fault belts. |
author2 |
Armadillo, Egidio Ferraccioli, F. Tabellario, G. Bozzo, Emanuele |
format |
Article in Journal/Newspaper |
author |
ARMADILLO, EGIDIO BOZZO, EMANUELE FERRACCIOLI F. TABELLARIO G. |
spellingShingle |
ARMADILLO, EGIDIO BOZZO, EMANUELE FERRACCIOLI F. TABELLARIO G. Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
author_facet |
ARMADILLO, EGIDIO BOZZO, EMANUELE FERRACCIOLI F. TABELLARIO G. |
author_sort |
ARMADILLO, EGIDIO |
title |
Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
title_short |
Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
title_full |
Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
title_fullStr |
Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
title_full_unstemmed |
Deep electrical resistivity sounding across a major ice covered fault belt in Northern Victoria Land (East Antarctica) |
title_sort |
deep electrical resistivity sounding across a major ice covered fault belt in northern victoria land (east antarctica) |
publishDate |
2004 |
url |
http://hdl.handle.net/11567/246723 https://doi.org/10.1029/2004GL019903 |
long_lat |
ENVELOPE(164.083,164.083,-85.000,-85.000) ENVELOPE(161.500,161.500,-72.000,-72.000) ENVELOPE(170.000,170.000,-71.417,-71.417) |
geographic |
Bowers East Antarctica Pacific Rennick Robertson Bay Victoria Land |
geographic_facet |
Bowers East Antarctica Pacific Rennick Robertson Bay Victoria Land |
genre |
Antarc* Antarctica East Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000221910200004 volume:31 firstpage:1 lastpage:4 numberofpages:4 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11567/246723 doi:10.1029/2004GL019903 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-4143102445 |
op_doi |
https://doi.org/10.1029/2004GL019903 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
10 |
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n/a |
op_container_end_page |
n/a |
_version_ |
1790609783976361984 |