Figure F30. Digital photographs of the P/E boundary sediments recovered at Sites 1220 and 1221. Lower Eocene calcareous chalks grade downcore into multicolored clay-rich lithologies. The last occurrence of Paleocene fauna is recorded at the base of the brown clay, and the first occurrence of Eocene assemblages is at the top of the dark brown clay. Calcareous fossils are barren to poorly preserved in the multicolored clay layers, and percentage CaCO₃ values are very low. FO = first occurrence, LO = last occurrence.