Multidisciplinary studies of diffuse soil CO2 flux, gas permeability, self-potential, soil temperature highlight the structural architecture of Fondi di Baia craters (Campi Flegrei caldera, Italy)

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Luca Tarchini
https://orcid.org/0000-0001-6045-0802
Massimo Ranaldi
Maria Luisa Carapezza
Maria Giulia Di Giuseppe
Roberto Isaia
Carlo Lucchetti
Ernesto Paolo Prinzi
Francesco D'Assisi Tramparulo
Antonio Trioano
Stefano Vitale

Abstract

We present in this paper the results of a geophysical and geochemical survey of self potential, diffuse soil CO2 flux, soil temperature and gas permeability carried out in the Fondi di Baia craters on the western sector of Campi Flegrei caldera, one of the most hazardous active volcano in Italy, aiming at highlighting the small scale volcano-tectonic structures of this Holocene edifice and at evaluating its state of fracturing. The central sector of Campi Flegrei (Solfatara volcano-Pisciarelli) is the one most affected by ground deformation and intense high-temperature fumarolic activity, nevertheless it cannot be ruled out a future vent opening along the western collapsed margin of the caldera, where Fondi di Baia craters are located. Our results show that the Fondi di Baia craters are characterized by a medium-high release of hydrothermal fluids through fractures that mimic the main volcano-tectonic structures of this portion of the caldera. Moreover, results indicate that, in case of a future volcanic reactivation, these structures could be possible paths for magma ascent. We provide a first estimate of the total flux of CO2 from Fondi di Baia diffuse degassing structure, quantified in 10.1 ± 1.1 t*d-1

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How to Cite
1.
Tarchini L, Ranaldi M, Carapezza ML, Di Giuseppe MG, Isaia R, Lucchetti C, Prinzi EP, Tramparulo FD, Trioano A, Vitale S. Multidisciplinary studies of diffuse soil CO2 flux, gas permeability, self-potential, soil temperature highlight the structural architecture of Fondi di Baia craters (Campi Flegrei caldera, Italy). Ann. Geophys. [Internet]. 2019Jul.8 [cited 2021Oct.25];62(1):VO05. Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/7683
Section
Special Issue: Explosive Eruptions and the Mediterranean Civilizations through Prehistory and History
Author Biography

Luca Tarchini, Dipartimento di Scienze Università Roma TRE

Post-Doc Research Fellow

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