Figure F25. Close-up photograph of relict flow banding observed in Unit 44, defined by fine bands with variable proportions of silica and very fine-grained clay minerals. This example consists of one comparatively homogeneous domain in the center of the hand specimen, which is enveloped by domains with mottled or clastic appearance. These domains may reflect primary textural differences with the central part representing coherent facies and the outer parts representing clastic facies of one lava (interval 193-1188F-16Z-1, 136-144 cm).