Global mantle convection models produce transform offsets along divergent plate boundaries

Abstract The presence of offsets, appearing at intervals ranging from 10s to 100s kilometres, is a distinct characteristic constructive tectonic plate margins. By comparison, boundaries associated with subduction exhibit uninterrupted continuity. Here, we present global mantle convection calculations that result in mobile lithosphere featuring dynamically derived exhibiting contrasting superficial structure which distinguishes convergence and divergence. Implementing yield-stress governs the viscosity lithosphere, spreading top vigorously convecting form as divergent linear segments regularly offset by similar length zones correlate large degree shear but comparatively minimal Analogous do not emerge surface convergence. Comparing similarity morphologies model margins Earth’s demonstrates transform-like offsets are stress induced weakness owing passive rupturing.