Figure 5From: High resolution seismic data coupled to Multibeam bathymetry of Stromboli island collected in the frame of the Stromboli geophysical experiment: implications with the marine geophysics and volcanology of the Aeolian Arc volcanic complex (Sicily, Southern Tyrrhenian sea, Italy)Sketch diagram according to the geodynamic model of Malinverno and Ryan 1986 (modified after Malinverno and Ryan 1986). 1: the evolution of the arc-trench system (A) is related to the velocity of the slab retreatment (Vr) and to the dipping angle (θ). In a fixed reference system with respect to the subducting plate (B) the velocities which determinate the tectonic style are: vc (velocity of convergence among plates), v’r (velocity of retreatment of the overthrusting plate). When the convergence does not exist (vc = 0) it verifies extension in the overthrusting plate in order to balance the retreatment of the subduction (C); 2) development of a basin, reflected by the outwards arc migration. 1: continent; 2: continental margin; 3: oceanic sector; 4: active subduction zone; 5: subduction zone not still active. The stages A, B and C indicate the time evolution.Back to article page