Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida)
This work deals with the magnetic fabric (AMS technique) of different lithotypes related to quaternary volcanism of Deception Island (South Shetland Islands). The studied rocks include lava flows from basaltic to basaltic-andesitic composition, mafic dykes and several types of pyroclastic deposits....
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Universidad de Huelva
2010
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ftunivhuelva:oai:rabida.uhu.es:10272/7500 2023-05-15T13:46:26+02:00 Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) Magnetic fabric significance of Quaternary volcanic rocks of Deception Island (South Shetland Islands, Antarctica) Gil Imaz, Andrés Gil Peña, Inmaculada Galindo Zaldívar, Jesús Rey Salgado, Jorge Maestro González, Adolfo Pueyo Anchuela, Óscar Soto Marín, Ruth Oliva Urcia, Belén López Martínez, Jerónimo 2010 http://hdl.handle.net/10272/7500 spa spa Universidad de Huelva http://hdl.handle.net/10272/7500 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 Volcanic rocks Magnetic fabric Deception Island Antarctica info:eu-repo/semantics/article 2010 ftunivhuelva 2021-08-11T19:39:14Z This work deals with the magnetic fabric (AMS technique) of different lithotypes related to quaternary volcanism of Deception Island (South Shetland Islands). The studied rocks include lava flows from basaltic to basaltic-andesitic composition, mafic dykes and several types of pyroclastic deposits. By combining the analysis of parametric aspects of the magnetic ellipsoids and their directional pattern, four types of magnetic fabrics have been recognized. Type I fabrics are related to laminar magma flow in both lava flows and dykes. The second one is related to magma reology in lava flow and tractive streams in pyroclastic deposits. Type III only identified in dikes, characterizes the imbrications of the magma flow against the dyke wall. Type IV reflects an isotropic rock-fabric and has been related to the presence of large anisotropic grains in lavas and particle fall without later modifications in pyroclastic deposits. The obtained results demonstrate the utility of AMS technique for petrogenetic model development linked to rock-fabric acquisition Article in Journal/Newspaper Antarc* Antarctica Antártida Deception Island South Shetland Islands Universidad de Huelva: Arias Montano Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) isla Decepción ENVELOPE(-60.633,-60.633,-62.950,-62.950) Rocas ENVELOPE(-56.948,-56.948,-63.398,-63.398) Shetland del Sur ENVELOPE(-58.000,-58.000,-62.000,-62.000) South Shetland Islands |
institution |
Open Polar |
collection |
Universidad de Huelva: Arias Montano |
op_collection_id |
ftunivhuelva |
language |
Spanish |
topic |
Volcanic rocks Magnetic fabric Deception Island Antarctica |
spellingShingle |
Volcanic rocks Magnetic fabric Deception Island Antarctica Gil Imaz, Andrés Gil Peña, Inmaculada Galindo Zaldívar, Jesús Rey Salgado, Jorge Maestro González, Adolfo Pueyo Anchuela, Óscar Soto Marín, Ruth Oliva Urcia, Belén López Martínez, Jerónimo Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
topic_facet |
Volcanic rocks Magnetic fabric Deception Island Antarctica |
description |
This work deals with the magnetic fabric (AMS technique) of different lithotypes related to quaternary volcanism of Deception Island (South Shetland Islands). The studied rocks include lava flows from basaltic to basaltic-andesitic composition, mafic dykes and several types of pyroclastic deposits. By combining the analysis of parametric aspects of the magnetic ellipsoids and their directional pattern, four types of magnetic fabrics have been recognized. Type I fabrics are related to laminar magma flow in both lava flows and dykes. The second one is related to magma reology in lava flow and tractive streams in pyroclastic deposits. Type III only identified in dikes, characterizes the imbrications of the magma flow against the dyke wall. Type IV reflects an isotropic rock-fabric and has been related to the presence of large anisotropic grains in lavas and particle fall without later modifications in pyroclastic deposits. The obtained results demonstrate the utility of AMS technique for petrogenetic model development linked to rock-fabric acquisition |
format |
Article in Journal/Newspaper |
author |
Gil Imaz, Andrés Gil Peña, Inmaculada Galindo Zaldívar, Jesús Rey Salgado, Jorge Maestro González, Adolfo Pueyo Anchuela, Óscar Soto Marín, Ruth Oliva Urcia, Belén López Martínez, Jerónimo |
author_facet |
Gil Imaz, Andrés Gil Peña, Inmaculada Galindo Zaldívar, Jesús Rey Salgado, Jorge Maestro González, Adolfo Pueyo Anchuela, Óscar Soto Marín, Ruth Oliva Urcia, Belén López Martínez, Jerónimo |
author_sort |
Gil Imaz, Andrés |
title |
Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
title_short |
Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
title_full |
Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
title_fullStr |
Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
title_full_unstemmed |
Significado de fábricas magnéticas en rocas volcánicas cuaternarias de la Isla Decepción (Shetland del Sur, Antártida) |
title_sort |
significado de fábricas magnéticas en rocas volcánicas cuaternarias de la isla decepción (shetland del sur, antártida) |
publisher |
Universidad de Huelva |
publishDate |
2010 |
url |
http://hdl.handle.net/10272/7500 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-60.633,-60.633,-62.950,-62.950) ENVELOPE(-56.948,-56.948,-63.398,-63.398) ENVELOPE(-58.000,-58.000,-62.000,-62.000) |
geographic |
Deception Island isla Decepción Rocas Shetland del Sur South Shetland Islands |
geographic_facet |
Deception Island isla Decepción Rocas Shetland del Sur South Shetland Islands |
genre |
Antarc* Antarctica Antártida Deception Island South Shetland Islands |
genre_facet |
Antarc* Antarctica Antártida Deception Island South Shetland Islands |
op_relation |
http://hdl.handle.net/10272/7500 |
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_ |
1766242465237434368 |