Abstract
The lithosphere structural model of the Campania Plain has been depicted based on integrated petrological, geochemical, and geophysical studies. A mantle wedge (VS of about 4.2km/s), 50km thick, is found at depths shallower than 30km, on the top of the westward-subducting Apenninic lithosphere. It overlies two faster layers (VS of about 4.4km/s) up to about 300km of depth. This is compatible with buried huge amounts (more than 1.5km) of calcalkaline andesitic and basaltic lavas and with the geochemical and petrological findings that subduction-related magmas, with broadly trachybasaltic compositions, were parental to all the volcanic suites in Campania.
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