Figure F11. Close-up photograph of a fracture through a bryozoan-dominated skeletal packstone in the upper part of Subunit IIIA (69.7 mbsf). The fracture is infilled by darker grainstone rich in glauconite pellets and quartz sand. Based partly on its reddish (oxidized) lower surface, this feature is interpreted as a karstic exposure surface (interval 194-1193B-6Z-1, 77-85 cm).

Figure F11. Close-up photograph of a fracture through a bryozoan-dominated skeletal packstone in the upper part of Subunit IIIA (69.7 mbsf). The fracture is infilled by darker grainstone rich in glauconite pellets and quartz sand. Based partly on its reddish (oxidized) lower surface, this feature is interpreted as a karstic exposure surface (interval 194-1193B-6Z-1, 77-85 cm).