Decoding the state of stress and fluid pathways along the Andean Southern Volcanic Zone

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dc.contributor.authorPerez-Estay, Nicolas
dc.contributor.authorRuz-Ginouves, Javiera
dc.contributor.authorPerez-Flores, Pamela
dc.contributor.authorSielfeld, Gerd
dc.contributor.authorRoquer, Tomas
dc.contributor.authorCembrano, Jose
dc.date.accessioned2025-01-20T17:25:40Z
dc.date.available2025-01-20T17:25:40Z
dc.date.issued2023
dc.description.abstractDecoding means decrypting a hidden message. Here, the encrypted messages are the state of stress, fluid pathways, and volcano tectonic processes occurring in volcanoes of the Andean Southern Volcanic Zone (SVZ). To decode these messages, we use earthquake focal mechanisms, fault slip data, and a Monte Carlo simulation that predicts potential pathways for magmatic and hydrothermal fluids. From this analysis, we propose that SVZ volcanoes have three end-member stress patterns: (i) Stress-A, a strike-slip regime coupled with the regional far-field tectonic stress; (ii) Stress-B, an extensional regime that may be promoted by volcanic edifice loading and upward pressure due to magma inflation occurring within the upper brittle-crust; and (iii) Stress-C, a local and transient fluid-driven stress rotated similar to 90 degrees from Stress-A. Notoriously, Stress-C pattern was observed in most volcanoes with historical eruptions. We propose that volcanoes presenting Stress-B are attractive geothermal targets, while Stress-C could be used as a predicting signal for impending eruptions.
dc.fuente.origenWOS
dc.identifier.doi10.1038/s43247-023-01040-9
dc.identifier.eissn2662-4435
dc.identifier.urihttps://doi.org/10.1038/s43247-023-01040-9
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91541
dc.identifier.wosidWOS:001095790100002
dc.issue.numero1
dc.language.isoen
dc.revistaCommunications earth & environment
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleDecoding the state of stress and fluid pathways along the Andean Southern Volcanic Zone
dc.typeartículo
dc.volumen4
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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