| Autor: |
PAOLETTI, VALERIA, FEDI, MAURIZIO, Salvatore, Passaro, Camilla, Marino, Stella, Tamburrino, Guido, Ventura |
| Přispěvatelé: |
Paoletti, Valeria, Salvatore, Passaro, Fedi, Maurizio, Camilla, Marino, Stella, Tamburrino, Guido, Ventura |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Popis: |
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. Three cones emplaced before the Last Glacial Maximum, whereas a fourth one emplaced after 19 ka 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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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