The Pisciarelli main fumarole mechanisms reconstructed by electrical resistivity and induced polarization imaging.

Pisciarelli, together with the adjacent Solfatara maar-diatreme, represents the most active structure of the Campi Flegrei caldera (Italy) in terms of degassing and seismic activity. This paper aims to define the structure of the Pisciarelli hydrothermal system (down to a 20 m depth) through electrical resistivity and time-domain-induced polarization tomography and self-potential mapping. The retrieved 3D image of the area helps reconstruct the Pisciarelli subsurface in its area of maximum degassing, containing the main fumarole ("soffione") and the mud pool.

Publisher Correction: Deep Electrical Resistivity Tomography for a 3D picture of the most active sector of Campi Flegrei caldera.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Deep Electrical Resistivity Tomography for a 3D picture of the most active sector of Campi Flegrei caldera.

The central sector of the Campi Flegrei volcano, including the Solfatara maar and Pisciarelli fumarole field, is currently the most active area of the caldera as regards seismicity and gaseous emissions and it plays a significant role in the ongoing unrest. However, a general volcano-tectonic reconstruction of the entire sector is still missing. This work aims to depict, for the first time, the architecture of the area through the application of deep Electrical Resistivity Tomography.