Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region
""This study presents the results of forward numerical models of a series of sections of the Aurora Trench (East Antarctica). derived from radio echo-sounding data that allowed to reconstruct the 3D shape of the Aurora Fault, a crustal listric. normal fault characterized by a length exceed...
Published in: | International Journal of Geosciences |
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Online Access: | http://hdl.handle.net/11590/267377 https://doi.org/10.4236/ijg.2013.49122 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/267377 2024-01-28T10:01:15+01:00 Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region CIANFARRA, Paola SALVINI, Francesco Cianfarra, Paola Salvini, Francesco 2013 http://hdl.handle.net/11590/267377 https://doi.org/10.4236/ijg.2013.49122 eng eng volume:4 firstpage:1275 lastpage:1284 numberofpages:10 journal:INTERNATIONAL JOURNAL OF GEOSCIENCES http://hdl.handle.net/11590/267377 doi:10.4236/ijg.2013.49122 Intracratonic Tectonic Numerical Modelling East Antarctica info:eu-repo/semantics/article 2013 ftunivroma3iris https://doi.org/10.4236/ijg.2013.49122 2024-01-03T17:40:50Z ""This study presents the results of forward numerical models of a series of sections of the Aurora Trench (East Antarctica). derived from radio echo-sounding data that allowed to reconstruct the 3D shape of the Aurora Fault, a crustal listric. normal fault characterized by a length exceeding 100 km. A similar extensional fault setting allows to replicate the. asymmetric buried morphology of the magnetic basement at the Lake Vostok depression derived by the available gravity. and magnetic profiles. Both the Aurora and Vostok listric fault reach their basal decollment at 34 km depth, possibly. the base of the crust in this intracratonic environment. Integration of these results with the existing geologic interpretations. of the tectonic origin of the Concordia Trench by normal faulting allowed to frame the Concordia, Aurora and. Vostok normal faults within an intraplate transtensional corridor with a left-lateral movement component. The westward. projection of the proposed strike-slip deformation belt may develop in correspondence of an older tectonic lineament. stretching from the Eastern flanks of the Gamburtsev Subglacial Mts to the Lambert rift and characterized by a. poly-phased complex tectonic history. The possible Cenozoic reactivation of these structures is discussed in the paper."" Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Antarctic East Antarctica Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) International Journal of Geosciences 04 09 1275 1284 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
Intracratonic Tectonic Numerical Modelling East Antarctica |
spellingShingle |
Intracratonic Tectonic Numerical Modelling East Antarctica CIANFARRA, Paola SALVINI, Francesco Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
topic_facet |
Intracratonic Tectonic Numerical Modelling East Antarctica |
description |
""This study presents the results of forward numerical models of a series of sections of the Aurora Trench (East Antarctica). derived from radio echo-sounding data that allowed to reconstruct the 3D shape of the Aurora Fault, a crustal listric. normal fault characterized by a length exceeding 100 km. A similar extensional fault setting allows to replicate the. asymmetric buried morphology of the magnetic basement at the Lake Vostok depression derived by the available gravity. and magnetic profiles. Both the Aurora and Vostok listric fault reach their basal decollment at 34 km depth, possibly. the base of the crust in this intracratonic environment. Integration of these results with the existing geologic interpretations. of the tectonic origin of the Concordia Trench by normal faulting allowed to frame the Concordia, Aurora and. Vostok normal faults within an intraplate transtensional corridor with a left-lateral movement component. The westward. projection of the proposed strike-slip deformation belt may develop in correspondence of an older tectonic lineament. stretching from the Eastern flanks of the Gamburtsev Subglacial Mts to the Lambert rift and characterized by a. poly-phased complex tectonic history. The possible Cenozoic reactivation of these structures is discussed in the paper."" |
author2 |
Cianfarra, Paola Salvini, Francesco |
format |
Article in Journal/Newspaper |
author |
CIANFARRA, Paola SALVINI, Francesco |
author_facet |
CIANFARRA, Paola SALVINI, Francesco |
author_sort |
CIANFARRA, Paola |
title |
Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
title_short |
Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
title_full |
Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
title_fullStr |
Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
title_full_unstemmed |
Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region |
title_sort |
intraplate transtensional tectonics in the east antarctic craton: insight from buried subglacial bedrock in the lake vostok – dome c region |
publishDate |
2013 |
url |
http://hdl.handle.net/11590/267377 https://doi.org/10.4236/ijg.2013.49122 |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) |
geographic |
Antarctic East Antarctica Lake Vostok |
geographic_facet |
Antarctic East Antarctica Lake Vostok |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_relation |
volume:4 firstpage:1275 lastpage:1284 numberofpages:10 journal:INTERNATIONAL JOURNAL OF GEOSCIENCES http://hdl.handle.net/11590/267377 doi:10.4236/ijg.2013.49122 |
op_doi |
https://doi.org/10.4236/ijg.2013.49122 |
container_title |
International Journal of Geosciences |
container_volume |
04 |
container_issue |
09 |
container_start_page |
1275 |
op_container_end_page |
1284 |
_version_ |
1789326091737890816 |