The structural setting of the Monte di Vezzi area, Ischia Island (Italy), derived from geophysical data

Abstract

We present a magnetic and gravimetric study of the structural setting of the Monte di Vezzi area, in the Ischia Island. The study was performed carrying out an analysis of a new high-resolution aeromagnetic data set and a previous gravity data set. The aeromagnetic survey covered the entire area of the island with a flight line spacing and a clearance of 300 meters. The analysis of the magnetic data set, that included reduction to the pole and computation of the horizontal derivative of data, lead to the location of the source of the anomaly measured over Monte di Vezzi and allowed mapping the main magnetic lineaments of the area. A 2D simultaneous magnetic and gravity modeling yielded the definition of a model of the mount in terms of density and magnetization, bringing new insights into the geo-volcanological and structural characteristics of the area.