Figure F17. Ash record, plotted as cumulative thickness through time, for Sites 1123 (water depth = 3290 m; North Chatham Drift) and 1124 (water depth = 3967 m; Rekohu Drift). The paleomagnetic age model is calibrated from the orbitally tuned benthic stable isotope record (Site 1123) and with isothermal plateau fission track (ITPFT) ages (Site 1124) (after Carter, L., et al., 2003). Note the inflection points, which indicate increases in the rate of ash supply at ~8 and 1.85 Ma. TVZ = Taupo Volcanic Zone; CVZ = Coromandel Volcanic Zone.

Figure F17. Ash record, plotted as cumulative thickness through time, for Sites 1123 (water depth = 3290 m; North Chatham Drift) and 1124 (water depth = 3967 m; Rekohu Drift). The paleomagnetic age model is calibrated from the orbitally tuned benthic stable isotope record (Site 1123) and with isothermal plateau fission track (ITPFT) ages (Site 1124) (after Carter, L., et al., 2003). Note the inflection points, which indicate increases in the rate of ash supply at ~8 and 1.85 Ma. TVZ = Taupo Volcanic Zone; CVZ = Coromandel Volcanic Zone.