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http://hdl.handle.net/2122/11063
Authors: | Linde, Niklas* Ricci, Tullio* Baron, Ludovic* Shakas, Alexis* Berrino, Giovanna* |
Title: | The 3-D structure of the Somma-Vesuvius volcanic complex (Italy) inferred from new and historic gravimetric data | Journal: | Scientific reports | Series/Report no.: | /7 (2017) | Issue Date: | 16-Aug-2017 | DOI: | 10.1038/s41598-017-07496-y | Subject Classification: | 04.02. Exploration geophysics | Abstract: | Existing 3-D density models of the Somma-Vesuvius volcanic complex (SVVC), Italy, largely disagree. Despite the scientific and socioeconomic importance of Vesuvius, there is no reliable 3-D density model of the SVVC. A considerable uncertainty prevails concerning the presence (or absence) of a dense body underlying the Vesuvius crater (1944 eruption) that is implied from extensive seismic investigations. We have acquired relative gravity measurements at 297 stations, including measurements in difficult-to-access areas (e.g., the first-ever measurements in the crater). In agreement with seismic investigations, the simultaneous inversion of these and historic data resolves a high-density body that extends from the surface of the Vesuvius crater down to depths that exceed 2 km. A 1.5-km radius horseshoe-shaped dense feature (open in the southwestern sector) enforces the existing model of groundwater circulation within the SVVC. Based on its volcano-tectonic evolution, we interpret volcanic structures that have never been imaged before. |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | |
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Linde_et_al-2017-Scientific_Reports_Vesuvio.pdf | 4.84 MB | Adobe PDF | View/Open |
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