Photomicrographs of pseudotachylyte veins. A. Injection vein showing zonation parallel to boundaries with flow banding (outlined by aligned clasts) and with chilled margins (locality 1). The darker outer sides correspond to chilled margins. Note the presence of pseudotachylyte clasts indicating a polyphase seismic activity. B. Well-rounded clinopyroxene clast (cpx) embedded in a fault vein (locality 1). C. Scanning electron microscope image of olivine and pyroxene microlites in a fault vein (locality 1). D. Flow fold frozen in an injection vein (locality 2). E. Cryptocrystalline matrix of a fault vein pseudotachylyte showing polygonal cracks interpreted as devitrification textures (locality 2).