Figure F9. 143Nd/144Nd vs. 87Sr/86Sr showing data points for basalts recovered from the Kerguelen Plateau and Broken Ridge. The data for Broken Ridge samples are corrected to an eruption age of 88 Ma; the data for dredged Kerguelen Plateau samples are corrected to an eruption age of 115 Ma. The effects of age correction are shown by the two fields (measured and age-corrected) for Site 738 on the southern Kerguelen Plateau. Data for other sites are not age corrected because parent/daughter abundance ratios are not available. Data for Kerguelen Plateau and Broken Ridge samples are from Weis et al. (1989), Salters et al. (1992), and Mahoney et al. (1995). Shown for comparison are fields for Southeast Indian Ridge (Hamelin et al., 1985/1986; Michard et al., 1986; Dosso et al., 1988; J.J. Mahoney, unpubl. data), St. Paul and Heard Islands (Heard data indicated by trajectory of solid line from Barling et al., 1994), the Ninetyeast Ridge (fields labeled NER and NER 216 [DSDP Site 216] from Weis and Frey, 1991, and Frey and Weis, 1995), and the entire Kerguelen Archipelago. Most samples from the Kerguelen Archipelago plot in the subfield labeled "Kerguelen plume?" that Weis et al. (1993, 1998b) interpreted as representative of the Kerguelen plume.