Figure F15. Pollen and spore record for the upper 60 rmcd (last 1.6 m.y.) of Site 1123 (water depth = 3290 m; North Chatham Drift). The data, which show obvious 41-k.y. Milankovitch cyclicity, are plotted against the color reflectance log (% carbonate proxy), the ODP Leg 111 Site 677 oxygen isotope record (Shackleton et al., 1990), and the paleomagnetic timescale (after Mildenhall, in press). The glacial vegetation (GV) index is based upon the proportion of cool-climate pollen present in each sample, expressed as (Halocarpus + Phyllocladus + Nothofagus fusca type + Coprosma)/(total pollen - Prumnopitys/Podocarpus). SSS = Standard Stratigraphic Scale.

Figure F15. Pollen and spore record for the upper 60 rmcd (last 1.6 m.y.) of Site 1123 (water depth = 3290 m; North Chatham Drift). The data, which show obvious 41-k.y. Milankovitch cyclicity, are plotted against the color reflectance log (% carbonate proxy), the ODP Leg 111 Site 677 oxygen isotope record (Shackleton et al., 1990), and the paleomagnetic timescale (after Mildenhall, in press). The glacial vegetation (GV) index is based upon the proportion of cool-climate pollen present in each sample, expressed as (Halocarpus + Phyllocladus + Nothofagus fusca type + Coprosma)/(total pollen - Prumnopitys/Podocarpus). SSS = Standard Stratigraphic Scale.