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  The deep structure of the Campi Flegrei caldera by magnetotelluric survey

Isaia, R., De Paola, C., Di Giuseppe, M. G., Natale, J., Troiano, A., Vitale, S. (2023): The deep structure of the Campi Flegrei caldera by magnetotelluric survey, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4406

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021837 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021837_1
Genre: Conference Paper

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 Creators:
Isaia, Roberto1, Author
De Paola, Claudio1, Author
Di Giuseppe, Maria Giulia1, Author
Natale, Jacopo1, Author
Troiano, Antonio1, Author
Vitale, Stefano1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: Electromagnetic imaging can proficiently detect deep structures in volcanic environments. A magnetotelluric (MT) survey has been performed in the Campi Flegrei volcanic environment, crossing the caldera through the main, recent volcano-tectonic structures and intersecting the most active sector of the Solfatra-Agnano zone. The electromagnetic reconstruction of the volcano’s internal structure points out the configuration of the plumbing system and the main structures for the ascent of magma and magmatic fluids, at least below a large continental portion of the caldera. The preliminary picture of the electrical resistivity distribution with depth suggests that the CF caldera plumbing system appears to be formed by distinct branches with a shallower geothermal system well developed below the Solfatara-Agnano area fed by a deeper source. The primary fault system, acting as a preferential pathway for magmatic fluids, is also identified. The resistivity model allows (i) to constrain the main electromagnetic features of the caldera and (ii) to delineate significant clues about its structural setting.This new picture represents a relevant contribution furnished by MT observations for hazard assessment at Campi Flegrei and can enhance the modeling of the driving mechanisms of the ongoing unrest.

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Language(s): eng - English
 Dates: 2023-07-112023-07-11
 Publication Status: Finally published
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-4406
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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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