Fig. 8
Color plot of maximum shear strain after 50% shortening for simulations with different sediment viscosities (indicated at the left of each panel-row) and different half-graben depth (indicated at the top of each panel-column). The general model configuration is identical to the one shown in Fig. 3 (except half-graben depths and sediment viscosities). The enlargements show the same model region as in Fig. 4a–d. For different half-graben depths but identical viscosities the maximum shear strain in the shear zone is similar (a, b and c, d) indicating a weak control of half-graben depth on kinematic strain localization. For different viscosities but identical half-graben depth the maximum shear strain in the shear zone is different (a, c and b, d) indicating a strong control of sediment viscosity on kinematic strain localization, which is in agreement with results shown in Fig. 6