Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1535
AuthorsCapuano, P.* 
Florio, G.* 
Gasparini, P.* 
TitleStructural model of the Northern Latium volcanic area constrained by MT, gravity and aeromagnetic data
Issue DateOct-1997
Series/Report no.40/5
URIhttp://hdl.handle.net/2122/1535
KeywordsMagnetotelluric sounding
gravity aeromagnetic
caldera
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.02. Gravity methods 
04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods 
04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous 
AbstractThe results of about 120 magnetotelluric soundings carried out in the Vulsini, Vico and Sabatini volcanic areas were modeled along with Bouguer and aeromagnetic anomalies to reconstruct a model of the structure of the shallow (less than 5 km of depth) crust. The interpretations were constrained by the information gathered from the deep boreholes drilled for geothermal exploration. MT and aeromagnetic anomalies allow the depth to the top of the sedimentary basement and the thickness of the volcanic layer to be inferred. Gravity anomalies are strongly affected by the variations of morphology of the top of the sedimentary basement, consisting of a Tertiary flysch, and of the interface with the underlying Mesozoic carbonates. Gravity data have also been used to extrapolate the thickness of the neogenic unit indicated by some boreholes. There is no evidence for other important density and susceptibility heterogeneities and deeper sources of magnetic and/or gravity anomalies in all the surveyed area.
Appears in Collections:Annals of Geophysics

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