Application of density modeling to address the nature of the Bransfield Strait
In order to study deep structure of north-western borderland of the Antarctic Peninsula, taking into account two existing contradictory notions as to the reasons of appearance of rifto-genesis in the Bransfield Strait, according to seismic data, multi-variant two-dimensional density simulation has b...
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Subbotin Institute of Geophysics of the NAS of Ukraine
2011
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ftjeepe:oai:ojs.journals.uran.ua:article/116904 2023-05-15T13:54:15+02:00 Application of density modeling to address the nature of the Bransfield Strait Kozlenko, Yu.V. Kozlenko, M. V. 2011-08-01 application/pdf http://journals.uran.ua/geofizicheskiy/article/view/116904 rus rus Subbotin Institute of Geophysics of the NAS of Ukraine http://journals.uran.ua/geofizicheskiy/article/view/116904/110960 http://journals.uran.ua/geofizicheskiy/article/view/116904 Copyright (c) 2020 Геофізичний журнал Copyright (c) 2020 Geofizicheskiy Zhurnal Copyright (c) 2020 Геофизический журнал http://creativecommons.org/licenses/by/4.0 CC-BY Geofizicheskiy Zhurnal; Том 33, № 4 (2011); 142-152 Геофизический журнал; Том 33, № 4 (2011); 142-152 Геофізичний журнал; Том 33, № 4 (2011); 142-152 2524-1052 0203-3100 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2011 ftjeepe 2020-10-12T23:36:31Z In order to study deep structure of north-western borderland of the Antarctic Peninsula, taking into account two existing contradictory notions as to the reasons of appearance of rifto-genesis in the Bransfield Strait, according to seismic data, multi-variant two-dimensional density simulation has been conducted along the profile involving the structures from the oceanic block of the Drake Strait up to the continent. The results did not confirm the spreading-subduction nature of the West Antarctica. Therefore, the continental margin of the Antarctic Peninsula belongs the most probably to the passive type, and the Bransfield Strait is not a back from arch basin. It has been shown that typically oceanic crust of the Drake Strait is interchanged by two-layered sub-continental crust of the South Shetland islands. In the Bransfield Strait the rootage of the mantle matter into lower and medium part of the basement has been confirmed that together with subsidence of the bottom is typical for rift structures. Suggestion has been made as to existence of one more rifting center in the coastal part of the Bransfield platform. The depth of the mantle surface within the Antarctic Peninsula obtained according to calculations, testifies its continental structure. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands West Antarctica Electrical Engineering and Power Engineering (EE&PE - E-Journal) Antarctic The Antarctic Antarctic Peninsula West Antarctica South Shetland Islands Bransfield Strait Drake Strait ENVELOPE(-60.000,-60.000,-60.000,-60.000) |
institution |
Open Polar |
collection |
Electrical Engineering and Power Engineering (EE&PE - E-Journal) |
op_collection_id |
ftjeepe |
language |
Russian |
description |
In order to study deep structure of north-western borderland of the Antarctic Peninsula, taking into account two existing contradictory notions as to the reasons of appearance of rifto-genesis in the Bransfield Strait, according to seismic data, multi-variant two-dimensional density simulation has been conducted along the profile involving the structures from the oceanic block of the Drake Strait up to the continent. The results did not confirm the spreading-subduction nature of the West Antarctica. Therefore, the continental margin of the Antarctic Peninsula belongs the most probably to the passive type, and the Bransfield Strait is not a back from arch basin. It has been shown that typically oceanic crust of the Drake Strait is interchanged by two-layered sub-continental crust of the South Shetland islands. In the Bransfield Strait the rootage of the mantle matter into lower and medium part of the basement has been confirmed that together with subsidence of the bottom is typical for rift structures. Suggestion has been made as to existence of one more rifting center in the coastal part of the Bransfield platform. The depth of the mantle surface within the Antarctic Peninsula obtained according to calculations, testifies its continental structure. |
format |
Article in Journal/Newspaper |
author |
Kozlenko, Yu.V. Kozlenko, M. V. |
spellingShingle |
Kozlenko, Yu.V. Kozlenko, M. V. Application of density modeling to address the nature of the Bransfield Strait |
author_facet |
Kozlenko, Yu.V. Kozlenko, M. V. |
author_sort |
Kozlenko, Yu.V. |
title |
Application of density modeling to address the nature of the Bransfield Strait |
title_short |
Application of density modeling to address the nature of the Bransfield Strait |
title_full |
Application of density modeling to address the nature of the Bransfield Strait |
title_fullStr |
Application of density modeling to address the nature of the Bransfield Strait |
title_full_unstemmed |
Application of density modeling to address the nature of the Bransfield Strait |
title_sort |
application of density modeling to address the nature of the bransfield strait |
publisher |
Subbotin Institute of Geophysics of the NAS of Ukraine |
publishDate |
2011 |
url |
http://journals.uran.ua/geofizicheskiy/article/view/116904 |
long_lat |
ENVELOPE(-60.000,-60.000,-60.000,-60.000) |
geographic |
Antarctic The Antarctic Antarctic Peninsula West Antarctica South Shetland Islands Bransfield Strait Drake Strait |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula West Antarctica South Shetland Islands Bransfield Strait Drake Strait |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands West Antarctica |
op_source |
Geofizicheskiy Zhurnal; Том 33, № 4 (2011); 142-152 Геофизический журнал; Том 33, № 4 (2011); 142-152 Геофізичний журнал; Том 33, № 4 (2011); 142-152 2524-1052 0203-3100 |
op_relation |
http://journals.uran.ua/geofizicheskiy/article/view/116904/110960 http://journals.uran.ua/geofizicheskiy/article/view/116904 |
op_rights |
Copyright (c) 2020 Геофізичний журнал Copyright (c) 2020 Geofizicheskiy Zhurnal Copyright (c) 2020 Геофизический журнал http://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
_version_ |
1766259953315610624 |