RESULTS

The raw ¹⁸O and ¹³C data for the sampled composite sections at Sites 1014 and 1020 are shown in Figure 1 and listed in Table 1 and Table 2. Using preliminary magnetostratigraphic constraints, the ¹⁸O data for each site were correlated (Paillard et al., 1996) with the high-resolution benthic ¹⁸O record from Eastern Equatorial Pacific Site 849 (Mix et al., 1995). The orbital-scale correlations were straightforward at both sites and did not require large sedimentation-rate changes for either mean glacial or interglacial portions of the records. The records are incomplete because of the delays associated with the installation of the new LDEO mass spectrometer. Based on these correlations, the Site 1014 record extends from 380 to 920 ka, whereas the Site 1020 record extends from 620 to 950 ka (Fig. 2). Once completed, the isotopic analyses for Sites 1014 and 1020 will be used to assess changes in Pacific deep- and intermediate-water nutrient chemistry within the context of known benthic isotope data spanning the same interval (0.6-1.2 Ma) from Ocean Drilling Program (ODP) Leg 154 Sites 925 and 929 from the Ceara Rise (deMenocal et al., 1997).