Figure 2From: Towards scaling laws for subduction initiation on terrestrial planets: constraints from two-dimensional steady-state convection simulationsComparison of (a) viscosity, (b) temperature, (c) stress profiles of exponential viscosities for θ=16, R a=3×107, and varying a. The somewhat different stress profile of a=0.25 suggests that the surface stress boundary layer is not the region with highest stress.Back to article page