Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait
In order to study evolution of the Bransfield Straight, reconstruction of paleostructure of northwestern extremity of Antarctica has been conducted on the base of analysis of batimetric and seismologic data as well as results of mapping of DSS and GPS observations. As a result of conducted studies t...
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| Дата: | 2012 |
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| Формат: | Стаття |
| Мова: | rus |
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Subbotin Institute of Geophysics of the NAS of Ukraine
2012
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| Онлайн доступ: | https://journals.uran.ua/geofizicheskiy/article/view/116664 |
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| Назва журналу: | Geofizicheskiy Zhurnal |
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journalsuranua-geofizicheskiy-article-1166642020-10-07T12:21:20Z Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait Kozlenko, Yu.V. Kozlenko, M. V. In order to study evolution of the Bransfield Straight, reconstruction of paleostructure of northwestern extremity of Antarctica has been conducted on the base of analysis of batimetric and seismologic data as well as results of mapping of DSS and GPS observations. As a result of conducted studies the limits of the Earth's crust blocks of the northern extremity of the Antarctic Peninsula, the North Shetland Islands and adjacent water area, which are different by their characteristics and history of development have been found. A scheme has been proposed for the mechanism of formation of up to-date structure of the region. It has been shown that earlier in this region a single geomorphologic mega-structure existed. Expansion of the Earth's crust in the central part of the rift resulted in creation of the passive rift in the western sub-depression. The results obtained testify to the fact that the leading role in formation of the North-Shetland trough was played by the thrust of the South-Shetland block to the Phenix Plate as a result of spreading in the Bransfield Straight. In such a way the concept of arising of this structure as a result of subduction of the Plate Phenix under the Antarctic Peninsula is denied. Subbotin Institute of Geophysics of the NAS of Ukraine 2012-10-01 Article Article application/pdf https://journals.uran.ua/geofizicheskiy/article/view/116664 10.24028/gzh.0203-3100.v34i5.2012.116664 Geofizicheskiy Zhurnal; Vol. 34 No. 5 (2012); 72-87 Геофизический журнал; Том 34 № 5 (2012); 72-87 Геофізичний журнал; Том 34 № 5 (2012); 72-87 2524-1052 0203-3100 rus https://journals.uran.ua/geofizicheskiy/article/view/116664/110738 Copyright (c) 2020 Geofizicheskiy Zhurnal https://creativecommons.org/licenses/by/4.0 |
| institution |
Geofizicheskiy Zhurnal |
| collection |
OJS |
| language |
rus |
| format |
Article |
| author |
Kozlenko, Yu.V. Kozlenko, M. V. |
| spellingShingle |
Kozlenko, Yu.V. Kozlenko, M. V. Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| author_facet |
Kozlenko, Yu.V. Kozlenko, M. V. |
| author_sort |
Kozlenko, Yu.V. |
| title |
Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| title_short |
Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| title_full |
Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| title_fullStr |
Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| title_full_unstemmed |
Paleostroenie of the northwestern extremity of Antarctica and the evolution of the Bransfield Strait |
| title_sort |
paleostroenie of the northwestern extremity of antarctica and the evolution of the bransfield strait |
| description |
In order to study evolution of the Bransfield Straight, reconstruction of paleostructure of northwestern extremity of Antarctica has been conducted on the base of analysis of batimetric and seismologic data as well as results of mapping of DSS and GPS observations. As a result of conducted studies the limits of the Earth's crust blocks of the northern extremity of the Antarctic Peninsula, the North Shetland Islands and adjacent water area, which are different by their characteristics and history of development have been found. A scheme has been proposed for the mechanism of formation of up to-date structure of the region. It has been shown that earlier in this region a single geomorphologic mega-structure existed. Expansion of the Earth's crust in the central part of the rift resulted in creation of the passive rift in the western sub-depression. The results obtained testify to the fact that the leading role in formation of the North-Shetland trough was played by the thrust of the South-Shetland block to the Phenix Plate as a result of spreading in the Bransfield Straight. In such a way the concept of arising of this structure as a result of subduction of the Plate Phenix under the Antarctic Peninsula is denied. |
| publisher |
Subbotin Institute of Geophysics of the NAS of Ukraine |
| publishDate |
2012 |
| url |
https://journals.uran.ua/geofizicheskiy/article/view/116664 |
| work_keys_str_mv |
AT kozlenkoyuv paleostroenieofthenorthwesternextremityofantarcticaandtheevolutionofthebransfieldstrait AT kozlenkomv paleostroenieofthenorthwesternextremityofantarcticaandtheevolutionofthebransfieldstrait |
| first_indexed |
2024-04-21T19:41:09Z |
| last_indexed |
2024-04-21T19:41:09Z |
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