Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/849
Authors: Occhipinti Amato, A.* 
Elia, M.* 
Bonaccorso, A.* 
La Rosa, G.* 
Title: Finite element analysis of ground deformation due to dike intrusion with applications to Mt. Etna volcano
Issue Date: 2004
Series/Report no.: 47 (5)
URI: http://hdl.handle.net/2122/849
Keywords: FEM
ground deformation
dike intrusion
real medium
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques 
Abstract: A 2D finite elements study was carried out to analyse the effects caused by dike intrusion inside a heterogeneous medium and with a realistic topography of Mt. Etna volcano. Firstly, the method (dimension domain, elements type) was calibrated using plane strain models in elastic half-spaces; the results were compared with those obtained from analytical dislocation models. Then the effects caused both by the topographic variations and the presence of multi-layered medium on the surface, were studied. In particular, an application was then considered to Mt. Etna by taking into account the real topography and the stratification deduced from seismic tomography. In these conditions, the effects expected by the dike, employed to model the 2001 eruption under simple elastic half-space medium conditions, were computed, showing that topography is extremely important, at least in the near field.
Appears in Collections:Annals of Geophysics

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