Figure F13. Distribution of epsilonHf values relative to the Indian Ocean MORB mantle (IMM)/Pacific Ocean MORB mantle (PMM) boundary. Note that the boundary for the ODP Leg 187 sites is not exactly co-registered with that for the near-zero–age data. 187 and Vema refer to Leg 187 and dredge data, respectively, of Kempton et al. (2002). 187A refers to Zone A west. Rectangular fields include near-axis data from Hanan et al. (2000a, 2000b, submitted [N1]). TMM = transitional MORB mantle.

Figure F13. Distribution of

Hf values relative to the Indian Ocean MORB mantle (IMM)/Pacific Ocean MORB mantle (PMM) boundary. Note that the boundary for the ODP Leg 187 sites is not exactly co-registered with that for the near-zero–age data. 187 and Vema refer to Leg 187 and dredge data, respectively, of Kempton et al. (2002). 187A refers to Zone A west. Rectangular fields include near-axis data from Hanan et al. (2000a, 2000b, submitted [N1]). TMM = transitional MORB mantle.