Figure F31. Digital photograph of the >63-boundary. The following major grains are observed at each depth interval: Planktonic foraminifers (intervals 199-1220B-20X-2; 1320, 2835, 3543, and 4250 cm; 198.90199.40 mbsf), pink brown grains and dolomite crystals (interval 199-1220B-20X-2; 5057 cm; 199.40199.47 mbsf), black grains and sediment lumps (interval 199-1220B-20X-2; 5764.5 cm; 199.47199.55 mbsf), large pinkish grains with many dolomite crystals (interval 199-1220B-20X-2; 6572 cm; 199.55199.62 mbsf), small pink brown grains with rare planktonic foraminifers and dolomite grains (interval 199-1220B-20X-2; 7478 cm; 199.64199.68 mbsf), and dolomite grains and rare benthic foraminifers (interval 199-1220B-20X-2; 77.585 and 8595 cm; 199.68199.85 mbsf).