Fig. 10
From: Rheology and stress in subduction zones around the aseismic/seismic transition
a Train of crenulations in pelitic schist, showing the kink-like geometry of the microfolds. b Dynamically recrystallized metachert deformed by dislocation creep, cut by a quartz vein produced by hydraulic fracture. The vein shows cross-fiber geometry, indicating the direction of opening, and grain-boundary bulging and dynamic recrystallization indicating renewed dislocation creep after emplacement