Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis
Global crustal model, from gravity studies, imaged a thick crust (>40 km) under Eastern Antartic craton (EAC). This global trend ends abruptly west of the Transantarctic Mountains (TAM), which border EAC along its western margins. There, the crust raises up to about 20 km. While this model points...
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ftingv:oai:www.earth-prints.org:2122/3351 2023-05-15T13:51:39+02:00 Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis Demartin, M. Roselli, P. Piana Agostinetti, N. Cattaneo, M. Demartin, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Roselli, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia Piana Agostinetti, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Cattaneo, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia 2006 http://hdl.handle.net/2122/3351 en eng AGU 2006 http://hdl.handle.net/2122/3351 open Antarctica Receiver Functions 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics Poster session 2006 ftingv 2022-07-29T06:04:44Z Global crustal model, from gravity studies, imaged a thick crust (>40 km) under Eastern Antartic craton (EAC). This global trend ends abruptly west of the Transantarctic Mountains (TAM), which border EAC along its western margins. There, the crust raises up to about 20 km. While this model points out the difference between EAC and the Ross sea crustal structures, its intrinsic spatial resolution gives little help to solve some regional geophysical issues, like the TAM orogenesis and the formation and nature of the Wilkes Basin. In this study, teleseismic Receiver Functions (RFs) are used to image the S-velocity crustal structure in finer details. We computed RFs from teleseismic events recorded during three different austral summer compaigns: BackTAM, WIBEM and WISE. Broadband seismic stations were deployed along a transect which spans from the coast of Northern Victoria land (NVL) to the far interior of the EAC plateau. The transect, almost perpendicular to the regional TAM axis, came across four different geological/geophysical settings: the alloctonhous terranes of the NVL, the TAM sector, the Wilkes Basin and the EAC plateau. Each area shows peculiar crustal structures and we propose both finer local S-velocity models and a regional crustal model. Published AGU General Assembly, S. Francisco 3.3. Geodinamica e struttura dell'interno della Terra open Other/Unknown Material Antarc* Antarctica antartic* Ross Sea Victoria Land Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Austral Ross Sea Transantarctic Mountains Victoria Land |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Antarctica Receiver Functions 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics |
spellingShingle |
Antarctica Receiver Functions 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics Demartin, M. Roselli, P. Piana Agostinetti, N. Cattaneo, M. Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
topic_facet |
Antarctica Receiver Functions 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics |
description |
Global crustal model, from gravity studies, imaged a thick crust (>40 km) under Eastern Antartic craton (EAC). This global trend ends abruptly west of the Transantarctic Mountains (TAM), which border EAC along its western margins. There, the crust raises up to about 20 km. While this model points out the difference between EAC and the Ross sea crustal structures, its intrinsic spatial resolution gives little help to solve some regional geophysical issues, like the TAM orogenesis and the formation and nature of the Wilkes Basin. In this study, teleseismic Receiver Functions (RFs) are used to image the S-velocity crustal structure in finer details. We computed RFs from teleseismic events recorded during three different austral summer compaigns: BackTAM, WIBEM and WISE. Broadband seismic stations were deployed along a transect which spans from the coast of Northern Victoria land (NVL) to the far interior of the EAC plateau. The transect, almost perpendicular to the regional TAM axis, came across four different geological/geophysical settings: the alloctonhous terranes of the NVL, the TAM sector, the Wilkes Basin and the EAC plateau. Each area shows peculiar crustal structures and we propose both finer local S-velocity models and a regional crustal model. Published AGU General Assembly, S. Francisco 3.3. Geodinamica e struttura dell'interno della Terra open |
author2 |
Demartin, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Roselli, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia Piana Agostinetti, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Cattaneo, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia |
format |
Other/Unknown Material |
author |
Demartin, M. Roselli, P. Piana Agostinetti, N. Cattaneo, M. |
author_facet |
Demartin, M. Roselli, P. Piana Agostinetti, N. Cattaneo, M. |
author_sort |
Demartin, M. |
title |
Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
title_short |
Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
title_full |
Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
title_fullStr |
Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
title_full_unstemmed |
Crustal Structure Across Northern Victoria Land, Antarctica, From Receiver Function Analysis |
title_sort |
crustal structure across northern victoria land, antarctica, from receiver function analysis |
publishDate |
2006 |
url |
http://hdl.handle.net/2122/3351 |
geographic |
Austral Ross Sea Transantarctic Mountains Victoria Land |
geographic_facet |
Austral Ross Sea Transantarctic Mountains Victoria Land |
genre |
Antarc* Antarctica antartic* Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctica antartic* Ross Sea Victoria Land |
op_relation |
AGU 2006 http://hdl.handle.net/2122/3351 |
op_rights |
open |
_version_ |
1766255652069441536 |