Processes, time scales and unrest of monogenetic volcanism

Seismic, deformation, and gas activity (unrest) typically precedes volcanic eruptions. Successful volcanic event forecasting depends on the quality of the surveillance network for detecting any changes in volcano behaviour. To interpret the geochemical and geophysical precursors correctly it is impo...

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Detalles Bibliográficos
Autor: Albert Mínguez, Helena
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/139826
Acceso en línea:http://hdl.handle.net/10261/139826
Access Level:acceso abierto
Palabra clave:Volcanic eruptions
Vulcanism
Magmatismo
Tenerife (Canarias)
Erupciones volcanicas
Magmatism
Volcanismo
Tenerife (Canary Islands)
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spelling Processes, time scales and unrest of monogenetic volcanismAlbert Mínguez, HelenaVolcanic eruptionsVulcanismMagmatismoTenerife (Canarias)Erupciones volcanicasMagmatismVolcanismoTenerife (Canary Islands)Seismic, deformation, and gas activity (unrest) typically precedes volcanic eruptions. Successful volcanic event forecasting depends on the quality of the surveillance network for detecting any changes in volcano behaviour. To interpret the geochemical and geophysical precursors correctly it is important to understand the volcanic processes that occur prior and during volcanic eruptions. Detailed knowledge of the volcano internal structure, the rheology of the magmas, the time scales of the processes occurring at depth and the characteristics of past unrest episodes, must be combined with an adequate monitoring network to improve the volcanic hazard forecast. However, these aspects have received little attention in monogenetic volcanoes. The aim of my PhD Thesis is to improve our understanding on monogenetic volcanism, its causes and dynamics, and to help anticipating the volcanic activity. I have focused on three main aspects of this problem. The first one is the calculation of the rheological properties of magmas during mixing. The second aspect I have addressed are the processes and time scales that lead to monogenetic eruptions with the aim to better interpret volcanic unrest and improve eruption forecasts. Finally, I have investigated the seismic unrest periods of historical monogenetic eruptions from a compilation of historical accounts worldwide. The results provide a conceptual framework for better anticipating monogenetic eruptions and should lead to improved strategies for mitigation of their associated hazards and risks.Peer ReviewedUniversidad de BarcelonaMartí i Molist, JoanCosta, Fidel2016201620152016info:eu-repo/semantics/doctoralThesishttp://purl.org/coar/resource_type/c_db06Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/139826reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésNoinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1398262026-05-22T06:33:51Z
dc.title.none.fl_str_mv Processes, time scales and unrest of monogenetic volcanism
title Processes, time scales and unrest of monogenetic volcanism
spellingShingle Processes, time scales and unrest of monogenetic volcanism
Albert Mínguez, Helena
Volcanic eruptions
Vulcanism
Magmatismo
Tenerife (Canarias)
Erupciones volcanicas
Magmatism
Volcanismo
Tenerife (Canary Islands)
title_short Processes, time scales and unrest of monogenetic volcanism
title_full Processes, time scales and unrest of monogenetic volcanism
title_fullStr Processes, time scales and unrest of monogenetic volcanism
title_full_unstemmed Processes, time scales and unrest of monogenetic volcanism
title_sort Processes, time scales and unrest of monogenetic volcanism
dc.creator.none.fl_str_mv Albert Mínguez, Helena
author Albert Mínguez, Helena
author_facet Albert Mínguez, Helena
author_role author
dc.contributor.none.fl_str_mv Martí i Molist, Joan
Costa, Fidel
dc.subject.none.fl_str_mv Volcanic eruptions
Vulcanism
Magmatismo
Tenerife (Canarias)
Erupciones volcanicas
Magmatism
Volcanismo
Tenerife (Canary Islands)
topic Volcanic eruptions
Vulcanism
Magmatismo
Tenerife (Canarias)
Erupciones volcanicas
Magmatism
Volcanismo
Tenerife (Canary Islands)
description Seismic, deformation, and gas activity (unrest) typically precedes volcanic eruptions. Successful volcanic event forecasting depends on the quality of the surveillance network for detecting any changes in volcano behaviour. To interpret the geochemical and geophysical precursors correctly it is important to understand the volcanic processes that occur prior and during volcanic eruptions. Detailed knowledge of the volcano internal structure, the rheology of the magmas, the time scales of the processes occurring at depth and the characteristics of past unrest episodes, must be combined with an adequate monitoring network to improve the volcanic hazard forecast. However, these aspects have received little attention in monogenetic volcanoes. The aim of my PhD Thesis is to improve our understanding on monogenetic volcanism, its causes and dynamics, and to help anticipating the volcanic activity. I have focused on three main aspects of this problem. The first one is the calculation of the rheological properties of magmas during mixing. The second aspect I have addressed are the processes and time scales that lead to monogenetic eruptions with the aim to better interpret volcanic unrest and improve eruption forecasts. Finally, I have investigated the seismic unrest periods of historical monogenetic eruptions from a compilation of historical accounts worldwide. The results provide a conceptual framework for better anticipating monogenetic eruptions and should lead to improved strategies for mitigation of their associated hazards and risks.
publishDate 2015
dc.date.none.fl_str_mv 2015
2016
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
http://purl.org/coar/resource_type/c_db06
Publisher's version
info:eu-repo/semantics/publishedVersion
format doctoralThesis
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/139826
url http://hdl.handle.net/10261/139826
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidad de Barcelona
publisher.none.fl_str_mv Universidad de Barcelona
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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