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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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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020507 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020507_1
Genre: Conference Paper

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

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 Abstract: 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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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
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 Identifiers: DOI: 10.57757/IUGG23-3017
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
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