Please use this identifier to cite or link to this item:
Authors: Passaro, Salvatore* 
Tamburrino, Stella* 
Vallefuoco, Mattia* 
Tassi, Franco* 
Vaselli, Orlando* 
Giannini, Luciano* 
Chiodini, Giovanni* 
Caliro, Stefano* 
Sacchi, Marco* 
Rizzo, Andrea Luca* 
Ventura, Guido* 
Title: Seafloor doming driven by degassing processes unveils sprouting volcanism in coastal areas
Issue Date: 1-Mar-2016
Series/Report no.: /6 (2016)
DOI: 10.1038/srep22448
Abstract: We report evidences of active seabed doming and gas discharge few kilometers offshore from the Naples harbor (Italy). Pockmarks, mounds, and craters characterize the seabed. These morphologies represent the top of shallow crustal structures including pagodas, faults and folds affecting the present-day seabed. They record upraise, pressurization, and release of He and CO2 from mantle melts and decarbonation reactions of crustal rocks. These gases are likely similar to those that feed the hydrothermal systems of the Ischia, Campi Flegrei and Somma-Vesuvius active volcanoes, suggesting the occurrence of a mantle source variously mixed to crustal fluids beneath the Gulf of Naples. The seafloor swelling and breaching by gas upraising and pressurization processes require overpressures in the order of 2-3 MPa. Seabed doming, faulting, and gas discharge are manifestations of non-volcanic unrests potentially preluding submarine eruptions and/or hydrothermal explosions.
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat 
Passaro et al 2016 Scient Rep.pdf2.1 MBAdobe PDFView/Open
Show full item record

Page view(s)

Last Week
Last month
checked on May 27, 2019


checked on May 27, 2019

Google ScholarTM