Análisis de la microfracturación en la Isla Decepción, Antártida Occidental
The micro fracture patterns in Deception Island, an active shield volcano located in (he Bransfield Strait, Antarctic Peninsula region, are studied here for the first time. 143 faults have been measured in five sites along the island, three main trends NE-5W, E-W and NW-SE have been established. The...
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Sociedad Geológica de España
1999
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ftunivhuelva:oai:rabida.uhu.es:10272/10075 2023-05-15T13:46:26+02:00 Análisis de la microfracturación en la Isla Decepción, Antártida Occidental Micro-fracture patterns in Deception Island, Western Antarctica González Casado, J. M. López Martínez, Jerónimo Giner Robles, J. L. Durán Valsero, Juan José Gumiel Martínez, Pablo 1999 http://hdl.handle.net/10272/10075 spa spa Sociedad Geológica de España http://hdl.handle.net/10272/10075 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess CC-BY-NC-ND Fracture analysis Active stress field Shield volcano Deception Island Antarctica info:eu-repo/semantics/article 1999 ftunivhuelva 2021-08-11T19:41:03Z The micro fracture patterns in Deception Island, an active shield volcano located in (he Bransfield Strait, Antarctic Peninsula region, are studied here for the first time. 143 faults have been measured in five sites along the island, three main trends NE-5W, E-W and NW-SE have been established. The average trend of all the measured faults is N46°E. The faults are several meters long and produce small displacement of the pyroclastic layers (up to some tens of centimetres). All of them have a dip higher than 60°, showing in , general a normal sense of movement. This orientation, subparallel to the Bransfield Basin axis, seems to be related to the caldera formation as well as with the subsequent tectonic deformation. These faults are related to a NW-SE extension, compatible with the tectonic setting of this area. The NW-SE faults show directional movement, then they represent, probably, transfer faults of the former group. A small set of normal faults trending E-W has also been measured Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Antártida Bransfield Strait Deception Island Universidad de Huelva: Arias Montano Antarctic Antarctic Peninsula Bransfield Strait Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) isla Decepción ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
institution |
Open Polar |
collection |
Universidad de Huelva: Arias Montano |
op_collection_id |
ftunivhuelva |
language |
Spanish |
topic |
Fracture analysis Active stress field Shield volcano Deception Island Antarctica |
spellingShingle |
Fracture analysis Active stress field Shield volcano Deception Island Antarctica González Casado, J. M. López Martínez, Jerónimo Giner Robles, J. L. Durán Valsero, Juan José Gumiel Martínez, Pablo Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
topic_facet |
Fracture analysis Active stress field Shield volcano Deception Island Antarctica |
description |
The micro fracture patterns in Deception Island, an active shield volcano located in (he Bransfield Strait, Antarctic Peninsula region, are studied here for the first time. 143 faults have been measured in five sites along the island, three main trends NE-5W, E-W and NW-SE have been established. The average trend of all the measured faults is N46°E. The faults are several meters long and produce small displacement of the pyroclastic layers (up to some tens of centimetres). All of them have a dip higher than 60°, showing in , general a normal sense of movement. This orientation, subparallel to the Bransfield Basin axis, seems to be related to the caldera formation as well as with the subsequent tectonic deformation. These faults are related to a NW-SE extension, compatible with the tectonic setting of this area. The NW-SE faults show directional movement, then they represent, probably, transfer faults of the former group. A small set of normal faults trending E-W has also been measured |
format |
Article in Journal/Newspaper |
author |
González Casado, J. M. López Martínez, Jerónimo Giner Robles, J. L. Durán Valsero, Juan José Gumiel Martínez, Pablo |
author_facet |
González Casado, J. M. López Martínez, Jerónimo Giner Robles, J. L. Durán Valsero, Juan José Gumiel Martínez, Pablo |
author_sort |
González Casado, J. M. |
title |
Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
title_short |
Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
title_full |
Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
title_fullStr |
Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
title_full_unstemmed |
Análisis de la microfracturación en la Isla Decepción, Antártida Occidental |
title_sort |
análisis de la microfracturación en la isla decepción, antártida occidental |
publisher |
Sociedad Geológica de España |
publishDate |
1999 |
url |
http://hdl.handle.net/10272/10075 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Deception Island isla Decepción |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Deception Island isla Decepción |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Antártida Bransfield Strait Deception Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Antártida Bransfield Strait Deception Island |
op_relation |
http://hdl.handle.net/10272/10075 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766242489612632064 |