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  Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano

Petrone, C. M., Mollo, S., Gertisser, R., Buret, Y., Scarlato, P., Del Bello, E., Andronico, D., Ellis, B., Pontesilli, A., De Astis, G., Giacomoni, P. P., Coltorti, M., Reagan, M. (2023): Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3017

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020507 Versions-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020507_1
Genre: Konferenzbeitrag

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 Urheber:
Petrone, Chiara Maria1, Autor
Mollo, Silvio1, Autor
Gertisser, Ralf1, Autor
Buret, Yannick1, Autor
Scarlato, Piergiorgio1, Autor
Del Bello, Elisabetta1, Autor
Andronico, Daniele1, Autor
Ellis, Ben1, Autor
Pontesilli, Alessio1, Autor
De Astis, Gianfilippo1, Autor
Giacomoni, Pier Paolo1, Autor
Coltorti, Massimo1, Autor
Reagan, Mark1, Autor
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Zusammenfassung: In June-August 2019, one major explosion and two paroxysms occurred at Stromboli volcano (Southern Italy) within only 64 days offering a unique opportunity to study the short-term variations in a basaltic plumbing system that can lead to paroxysmal events.Via a multifaceted approach using clinopyroxene from the summer 2019 paroxysms, we reveal a key role for batches of the volatile-rich deep seated low-porphyritic (lp) magma recharge arriving in the shallow reservoir up to a few days before these events. Our data indicate a rejuvenated Stromboli plumbing system where the extant crystal mush is efficiently permeated by recharge lp-magma with minimum remobilisation promoting a direct linkage between the deeper (lp) and shallow (hp) reservoirs. This sustains the current variability of eruptive styles with near immediate eruptive response to mafic magma recharge. The remarkable agreement between our calculated recharge timescales and the observed variation in time of various monitoring signals strongly supports such a model.Our approach provides vital insights into magma dynamics and their effects on monitoring signals demonstrating that detailed petrological studies integrated with volcano monitoring signals are fundamental for a fast response during a volcanic unrest phase or crisis.This work has been published in Nature Communication: Petrone, C.M et al. Magma recharge and mush rejuvenation drive paroxysmal activity at Stromboli volcano. Nat Commun 13, 7717 (2022). https://doi.org/10.1038/s41467-022-35405-z.

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Sprache(n): eng - Englisch
 Datum: 2023-07-112023-07-11
 Publikationsstatus: Final veröffentlicht
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 Identifikatoren: DOI: 10.57757/IUGG23-3017
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Veranstaltung

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Veranstaltungsort: Berlin
Start-/Enddatum: 2023-07-11 - 2023-07-20

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Titel: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Potsdam : GFZ German Research Centre for Geosciences
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