Figure 1. Oxygen isotopic curve from Hole 994C and the tentative correlation with the isotopic stratigraphy in Hole 659 (Tiedemann et al., 1994). The solid line of Hole 994C is connected to the mean ¹⁸O values of G. sacculifer (open circle) and G. ruber (open diamond), except in two short intervals (17.56-20.36 mbsf and 34.72-36.43 mbsf) where only one type of data were measurable because of the paucity of the taxa involved. The first appearance of Emiliania huxleyi, last occurrence of Pseudoemiliania lacunosa, and the Brunhes/Matuyama boundary (B/M) are also shown here. The numbers in the lower part of the figure indicate oxygen isotopic stages. The dashed line correlating between the records of Hole 994C and Hole 659 indicates less reliable correlation.