Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)

70 basaltic lava flows from Mt. Etna erupted in 1910, 1928, 1950 and 1979 were sampled to carry out rockmagnetic studies In order to determine their magnetic mineralogy and paleomagnetic stability and to asses their suitability for paleointensity studies. Rockmagnetic studies included measurement of...

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Detalles Bibliográficos
Autores: Calvo, M., Perrin, M., Prévot, M.
Tipo de recurso: artículo
Fecha de publicación:1996
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/12737
Acceso en línea:http://hdl.handle.net/10272/12737
Access Level:acceso abierto
Palabra clave:Rock magnetism
Paleointensity
Secular variation
Mt. Etna
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spelling Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)Rockmagnetic and paleomagnetic study of historical lava flows from Mt. Etna (Sicily, Italy)Calvo, M.Perrin, M.Prévot, M.Rock magnetismPaleointensitySecular variationMt. Etna70 basaltic lava flows from Mt. Etna erupted in 1910, 1928, 1950 and 1979 were sampled to carry out rockmagnetic studies In order to determine their magnetic mineralogy and paleomagnetic stability and to asses their suitability for paleointensity studies. Rockmagnetic studies included measurement of susceptibility versus temperature curves, vibrating sample thermomagnetometer experiments, measurement of isothermal remanence acquisition curves and determination of viscosity index V. Three different types of susceptibility versus temperature curves allowed to recognize magnetite, ilmeno-hematite and/or oxidized low-Ti titanomagnetite as main ferromagnetic phases. In some samples a fraction of grains with multidomain structure could be recognized. Nevertheless, the main part of the studied samples showed a viscosity index V<5%.A paleomagnetic study carried out on a lava flow from 1689 in order to obtain additional data for a secular variation curve for Sicily yielded the following result: D= 344.6, 1= 64.2, N=14, cc95 = 1.5 and k=737Sociedad Geológica de España19961996-01-0119961996-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/12737reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/127372026-06-02T14:58:11Z
dc.title.none.fl_str_mv Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
Rockmagnetic and paleomagnetic study of historical lava flows from Mt. Etna (Sicily, Italy)
title Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
spellingShingle Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
Calvo, M.
Rock magnetism
Paleointensity
Secular variation
Mt. Etna
title_short Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
title_full Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
title_fullStr Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
title_full_unstemmed Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
title_sort Estudio magnético y paleomagnético de coladas históricas del Etna (Sicilia, Italia)
dc.creator.none.fl_str_mv Calvo, M.
Perrin, M.
Prévot, M.
author Calvo, M.
author_facet Calvo, M.
Perrin, M.
Prévot, M.
author_role author
author2 Perrin, M.
Prévot, M.
author2_role author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Rock magnetism
Paleointensity
Secular variation
Mt. Etna
topic Rock magnetism
Paleointensity
Secular variation
Mt. Etna
description 70 basaltic lava flows from Mt. Etna erupted in 1910, 1928, 1950 and 1979 were sampled to carry out rockmagnetic studies In order to determine their magnetic mineralogy and paleomagnetic stability and to asses their suitability for paleointensity studies. Rockmagnetic studies included measurement of susceptibility versus temperature curves, vibrating sample thermomagnetometer experiments, measurement of isothermal remanence acquisition curves and determination of viscosity index V. Three different types of susceptibility versus temperature curves allowed to recognize magnetite, ilmeno-hematite and/or oxidized low-Ti titanomagnetite as main ferromagnetic phases. In some samples a fraction of grains with multidomain structure could be recognized. Nevertheless, the main part of the studied samples showed a viscosity index V<5%.A paleomagnetic study carried out on a lava flow from 1689 in order to obtain additional data for a secular variation curve for Sicily yielded the following result: D= 344.6, 1= 64.2, N=14, cc95 = 1.5 and k=737
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-01-01
1996
1996-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/12737
url http://hdl.handle.net/10272/12737
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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