Figure F4. Close-up photographs of representative lithologies from Unit II at Site 1259. A. Light greenish gray siliceous foraminifer nannofossil chalk, with pervasive burrows from Subunit IIB (interval 207-1259A-27R-6, 70–90 cm). The darker (higher clay content) interval at 83–86 cm is characteristic of the rhythmic color cycles observed at the base of the subunit. B. Typical finely mottled sediments of Subunit IIC right above the biostratigraphic P/E boundary (interval 207-1259B-8R-4, 35–50 cm).