5:15 PM - 6:30 PM
[MIS17-P30] Paleoceanographic reconstruction using siliceous microfossils from the Atlantic sector of the Southern Ocean
Keywords:the Southern Ocean, diatom, resting spore, chrysophyte cysts, ODP, DSDP
In this study, the changes in the microfossil assemblages of ‘normal’ diatoms, Chaetoceros resting spores and chrysophyte cysts are investigated in order to estimate a long-term trend of paleoceanographic changes (e.g., changes in sea-ice distribution, and location and strength of upwelling and the Antarctic Circumpolar Current system) around the Southern Ocean. In the current presentation, we would like to present and discuss on the paleontological data derived from the ODP Site 689 and DSDP Site 513 materials (Atlantic sector of the Southern Ocean).