Hydraulic properties of fault zones in porous carbonates, examples from central and southern Italy

2016 ◽  
Vol 135 (1) ◽  
pp. 68-79 ◽  
Author(s):  
Emanuele Tondi ◽  
Andrea Rustichelli ◽  
Antonino Cilona ◽  
Fabrizio Balsamo ◽  
Fabrizio Storti ◽  
...  
Keyword(s):  
Hydraulic Properties ◽  
Southern Italy ◽  
Fault Zones

scholarly journals Bacterial migration through low-permeability fault zones in compartmentalised aquifer systems: a case study in Southern Italy

2014 ◽  
Vol 43 (3) ◽  
pp. 273-281 ◽  
Author(s):  
Antonio Bucci ◽  
Emma Petrella ◽  
Gino Naclerio ◽  
Sabrina Gambatese ◽  
Fulvio Celico
Keyword(s):  
Southern Italy ◽  
Fault Zones ◽  
Low Permeability ◽  
Aquifer Systems ◽  
Bacterial Migration

scholarly journals Fluid migrations and volcanic earthquakes from depolarized ambient noise

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. Petrosino ◽  
L. De Siena
Keyword(s):  
Hydrothermal Vents ◽  
Ambient Noise ◽  
Southern Italy ◽  
Fault Zones ◽  
Campi Flegrei ◽  
Seismic Sequences ◽  
Transfer Structure ◽  
Pressurized Fluids ◽  
Gas Bearing ◽  
Extensional Structures

AbstractAmbient noise polarizes inside fault zones, yet the spatial and temporal resolution of polarized noise on gas-bearing fluids migrating through stressed volcanic systems is unknown. Here we show that high polarization marks a transfer structure connecting the deforming centre of the caldera to open hydrothermal vents and extensional caldera-bounding faults during periods of low seismic release at Campi Flegrei caldera (Southern Italy). Fluids pressurize the Campi Flegrei hydrothermal system, migrate, and increase stress before earthquakes. The loss of polarization (depolarization) of the transfer and extensional structures maps pressurized fluids, detecting fluid migrations after seismic sequences. After recent intense seismicity (December 2019-April 2020), the transfer structure appears sealed while fluids stored in the east caldera have moved further east. Our findings show that depolarized noise has the potential to monitor fluid migrations and earthquakes at stressed volcanoes quasi-instantaneously and with minimum processing.

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