Advanced magnetic visualization of Mt. Vesuvius shallow plumbing system by probability tomography

T. Iuliano, P. Mauriello, D. Patella


We show the results of the application of a new magnetic probability tomography imaging method to the aeromagnetic dataset collected by AGIP on Mt. Vesuvius in 1978. A magnetic dipole occurrence probability function is defined in such a way as to contain all information about the whole class of equivalent sources compatible with the original survey dataset. An advanced 3D visual system is also applied for the first time to visualise the spacial pattern of the magnetic dipole occurrence probability function. It is shown that in the case of Vesuvius, the shallow plumbing system is characterised by a high probability of occurrence of a dipole at 2 km of depth b.s.l., nearly directed along the present main earths magnetic field. This leads to hypothesize that the top terminal portion of the volcanic apparatus is completely filled with magnetised volcanic material.


probability tomography;magnetic anomaly;Vesuvius volcano

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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X