Figure F18. A. Photograph of interval 187-1164B-4R-2, 62-72 cm, the outside of the core piece, an aphyric basalt from Unit 1 of Hole 1164B with a chilled margin on the bottom and a layer of basaltic breccia on the top. Note the occurrence of finer grained sediment at the bottom of a pocket (center right) with coarser silt and sand-sized material overlying it. B. Photograph of interval 187-1164B-4R-2, 58-74 cm, which shows the cut face of the interval in Figure F18A. Figure F18A's pocket is shown as the small pocket (left) in this view.