Fault core images. (a) Hand sample photograph of the foliated cataclasite showing S-C shear lenses (lithons) of grey host rock micritic limestone and calcite, bounded by dissolution seams or stylolites. Detail of the calcite cement can be found in Figure 8
(d). (b, c) Optical microphotographs of the foliated cataclasite matrix with the presence of reddish clay minerals concentrated along pressure solution surfaces (yellow arrow).