| Titre | The dynamics of large silicic systems from satellite remote sensing observations: the intriguing case of Domuyo volcano, Argentina |
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| Auteur | Lundgren, P ;
Girona, T; Bato, M G; Realmuto, V J; Samsonov, S; Cardona, C;
Franco, L; Gurrola, E; Aivazis, M |
| Source | Scientific Reports vol. 10, issue 1, 11642, 2020 p. 1-15, https://doi.org/10.1038/s41598-020-67982-8  Accès ouvert |
| Image |  |
| Année | 2020 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20200297 |
| Éditeur | Nature Research |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1038/s41598-020-67982-8 |
| Media | papier; en ligne; numérique |
| Formats | pdf; html |
| Lat/Long OENS | -72.0000 -69.0000 -35.0000 -38.0000 |
| Sujets | magmatisme; volcanisme; volcans; télédétection; imagerie par satellite; méthodes radar; levés à l'infrarouge; imagerie thermique; analyses thermiques; évolution tectonique; déformation; établissement de
modèles; Méthodologie; tectonique; géophysique; Nature et environnement; Sciences et technologie; Santé et sécurité |
| Illustrations | cartes de localisation; cartes géolscientiques généralisées; images satellitaires; séries chronologiques; profils; modèles schématiques |
| Diffusé | 2020 07 15 |
| Résumé | (disponible en anglais seulement)
Silicic magmatic systems are the most dangerous volcanoes on Earth, capable of large and catastrophic eruptions, yet their low eruptive frequency makes it
challenging to interpret their short-term unrest. Here we present a decade-plus analysis that integrates, for the first time, time series of satellite interferometric synthetic aperture radar (InSAR) surface deformation and satellite thermal infrared
edifice-scale surface warming at a large silicic system: Domuyo volcano, in Argentina. We find that deformation and warming are highly correlated, and depending on the sign and lag between the time series, either shallow sealing or magma influx could
drive Domuyo's ongoing inflation (~ 0.15 m/year; from an InSAR-derived tabular source, ~ 11 × 8 × 1 km; ~ 6.5 km depth; ~ 0.037 km3/year volume-change rate) and warming (0.3-0.4 °C/year). This study shows the potential that combined satellite surface
deformation and edifice-scale surface warming time series have on assessing the physical mechanisms of silicic volcanic systems and for constraining deterministic models. |
| GEOSCAN ID | 326906 |
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