Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability

Characterisation of surface deformation at stratovolcanoes is essential for a better understanding of the processes that can compromise edifice structural stability and potential for flank collapse. Spreading produced by the presence of a hydrothermal system or intrusion of a viscous magma body can...

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Detalles Bibliográficos
Autores: Rincón, Marta, Márquez González, Álvaro, Herrera, Raquel, Martín González, Fidel, López, I., Crespo-Martín, C.
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/73088
Acceso en línea:https://hdl.handle.net/20.500.14352/73088
Access Level:acceso abierto
Palabra clave:551.215
Sector collapse
Deformation
Analogue models
Spreading
intrusion
Stratovolcanoes
Petrología
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spelling Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stabilityRincón, MartaMárquez González, ÁlvaroHerrera, RaquelMartín González, FidelLópez, I.Crespo-Martín, C.551.215Sector collapseDeformationAnalogue modelsSpreadingintrusionStratovolcanoesPetrologíaCharacterisation of surface deformation at stratovolcanoes is essential for a better understanding of the processes that can compromise edifice structural stability and potential for flank collapse. Spreading produced by the presence of a hydrothermal system or intrusion of a viscous magma body can produce similar deformation signatures, and both processes have implications for flank instability. In this work, we perform analogue models and consider examples from real volcanoes (Damavand, Ubinas, Semeru and Casita) so as to characterise and recognise surface deformation patterns produced by spreading due to the presence of a hydrothermal system and in response to magma intrusion. The experiments show that there are differences in the resulting surface deformation associated with each process. Magma intrusion results in a sharp transition between areas of subsidence and uplift, and is associated with faults with oblique strikes in the upper part of the edifice. Instead, asymmetric flank spreading is associated with hydrothermal system and results in flank bulging close to the base of the edifice. Although laboratory analogue models show different deformation responses that could be diagnostic of the associated processes, application in the field is difficult as often these diagnostic features are not preserved during evolution. However, basal bulging represents a potential diagnostic for the identification of asymmetric volcano flank spreading associated with hydrothermal activity, and the potential for instability. Remote sensing techniques can allow identification of such surface deformation features, providing a useful tool for hazard assessment and design of monitoring strategies at potentially unstable volcanoes.SpringerUniversidad Complutense de Madrid20232023-01-0120232023-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/73088reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/730882026-06-02T12:44:21Z
dc.title.none.fl_str_mv Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
title Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
spellingShingle Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
Rincón, Marta
551.215
Sector collapse
Deformation
Analogue models
Spreading
intrusion
Stratovolcanoes
Petrología
title_short Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
title_full Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
title_fullStr Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
title_full_unstemmed Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
title_sort Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability
dc.creator.none.fl_str_mv Rincón, Marta
Márquez González, Álvaro
Herrera, Raquel
Martín González, Fidel
López, I.
Crespo-Martín, C.
author Rincón, Marta
author_facet Rincón, Marta
Márquez González, Álvaro
Herrera, Raquel
Martín González, Fidel
López, I.
Crespo-Martín, C.
author_role author
author2 Márquez González, Álvaro
Herrera, Raquel
Martín González, Fidel
López, I.
Crespo-Martín, C.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.215
Sector collapse
Deformation
Analogue models
Spreading
intrusion
Stratovolcanoes
Petrología
topic 551.215
Sector collapse
Deformation
Analogue models
Spreading
intrusion
Stratovolcanoes
Petrología
description Characterisation of surface deformation at stratovolcanoes is essential for a better understanding of the processes that can compromise edifice structural stability and potential for flank collapse. Spreading produced by the presence of a hydrothermal system or intrusion of a viscous magma body can produce similar deformation signatures, and both processes have implications for flank instability. In this work, we perform analogue models and consider examples from real volcanoes (Damavand, Ubinas, Semeru and Casita) so as to characterise and recognise surface deformation patterns produced by spreading due to the presence of a hydrothermal system and in response to magma intrusion. The experiments show that there are differences in the resulting surface deformation associated with each process. Magma intrusion results in a sharp transition between areas of subsidence and uplift, and is associated with faults with oblique strikes in the upper part of the edifice. Instead, asymmetric flank spreading is associated with hydrothermal system and results in flank bulging close to the base of the edifice. Although laboratory analogue models show different deformation responses that could be diagnostic of the associated processes, application in the field is difficult as often these diagnostic features are not preserved during evolution. However, basal bulging represents a potential diagnostic for the identification of asymmetric volcano flank spreading associated with hydrothermal activity, and the potential for instability. Remote sensing techniques can allow identification of such surface deformation features, providing a useful tool for hazard assessment and design of monitoring strategies at potentially unstable volcanoes.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-01
2023
2023-01-01
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 https://hdl.handle.net/20.500.14352/73088
url https://hdl.handle.net/20.500.14352/73088
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/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 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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