Fig. 5
From: A possible mechanism for spontaneous cyclic back-arc spreading
Results for case 4 a, d with Atr = 100 Ma, case 5 b, e with Atr = 60 Ma and case 6 c, f with Atr = 40 Ma. σyield = 500 MPa and ϕAL = 0.1. a–c Changes in velocities of the subducting plate (Vsp), the overriding plate (Vop) and the trench (Vtr) combined with the average dip angle of the slab surface (Dip) measured in the depth range of 200–300 km. d–f Slab geometries. The distribution of effective viscosity is shown by different colors and arrows indicate the velocity field