Fig. 9From: Rheology and stress in subduction zones around the aseismic/seismic transitiona Relationship between a microfold (crenulation), the dilational arc in the hinge, and pressure-solution seams along the limbs. b A microfold train is a dilatant shear zone. Incremental growth of these microfold trains can produce displacement and equivalent seismic moment comparable to low-frequency earthquakesBack to article page