Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/11092
Authors: Paoletti, V.* 
Passaro, S.* 
Fedi, M.* 
Marino, C.* 
Tamburrino, S.* 
Ventura, Guido* 
Title: Subcircular conduits and dikes offshore the Somma-Vesuvius volcano revealed by magnetic and seismic data
Issue Date: 2016
Series/Report no.: /43 (2016)
DOI: 10.1002/2016GL070271
URI: http://hdl.handle.net/2122/11092
Abstract: We analyzed new magnetic, bathymetric, and seismic data acquired in the offshore sector of Somma-Vesuvius volcano (Italy). We detected a group of high-intensity, short wavelength magnetic anomalies corresponding to partly buried volcanic dome-like structures located by seismic data. The magnetic anomalies are aligned along a NW-SE strike that is the preferential orientation of an eruptive fracture of the pre-19 ka activity of Vesuvius. Four cones emplaced after the Last Glacial Maximum (19 ka), whereas a fifth one emplaced more recently suggesting a rejuvenation of the eruptive system offshore the volcano in historical times. We also identified a NE-SW elongated magnetic anomaly consistent with a dike-like body associated to an on-land tectonic structure that was active in recent times at Vesuvius. A delta-like area with diffuse low-intensity magnetic anomalies reflects the seaward fronts of lava flows that entered the sea mainly during the Middle Ages.
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