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

dc.contributor.authorRincón, Marta
dc.contributor.authorMárquez, Álvaro
dc.contributor.authorHerrera, Raquel
dc.contributor.authorMartín González, Fidel
dc.contributor.authorLópez, Iván
dc.contributor.authorCrespo Martín, Cristina
dc.date.accessioned2024-02-05T15:05:30Z
dc.date.available2024-02-05T15:05:30Z
dc.date.issued2023-02-26
dc.identifier.citationRincón, M., Márquez, A., Herrera, R., Martín-González, F., López, I., & Crespo-Martín, C. (2023). Morpho-structural criteria for the identification of spreading-induced deformation processes potentially compromising stratovolcano stability. Bulletin of Volcanology, 85(3), 17.es
dc.identifier.issn0258-8900
dc.identifier.urihttps://hdl.handle.net/10115/29676
dc.description.abstractCharacterisation 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.es
dc.language.isoenges
dc.publisherSpringeres
dc.subjectSector collapsees
dc.subjectDeformationes
dc.subjectAnalogue modelses
dc.subjectSpreadinges
dc.subjectIntrusiones
dc.subjectStratovolcanoeses
dc.titleMorpho‑structural criteria for the identification of spreading‑induced deformation processes potentially compromising stratovolcano stabilityes
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1007/s00445-023-01635-2es
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses


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