Fig. 7
Color plot of maximum shear strain (γm, Eq. 2) for simulations presented in Fig. 5. The enlargements show the same model region as in Fig. 4a–d. Kinematic strain localization occurs in all simulations. Strain localization is more intense for lower viscosities for homogeneous sediment viscosity (a–c). Strain localization is significantly larger for two sediment layers with different viscosities (d–f). g Profile of maximum shear strain across the shear zone indicated as black line in figure a–f. The line style of the corresponding simulation is indicated in the lower left corner of panels a–f. The most intense strain localization with a maximum shear strain >500 is observed for the simulations with a viscosity ratio of 10 (d, e)