Japan Geoscience Union Meeting 2018

Presentation information

[EJ] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS06] Global climate change driven by the Southern Ocean and the Antarctic Ice Sheet

Mon. May 21, 2018 10:45 AM - 12:15 PM 302 (3F International Conference Hall, Makuhari Messe)

convener:Osamu Seki(Institute of Low Temperature Science, Hokkaido University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Ryosuke Makabe(国立極地研究所, 共同), Ryu Uemura(University of the Ryukyus), Chairperson:Takao Shintaro(National Institute of Polar Research), Abe-Ouchi Ayako(東京大学大気海洋研究所)

10:45 AM - 11:10 AM

[MIS06-07] For better understanding of the Southern Ocean history

★Invited Papers

*Itsuki Suto1, Yuji Kato1, Saki Ishino1, Keiji Hattori1, Keigo Takahashi2, Ryosuke Makabe3,4 (1.Department of Earth and Planetary Sciences Graduate School of Environmental Studies, Nagoya University, 2.Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 3.Bioscience Group, National Institute of Polar Research, 4.chool of Multidisciplinary Sciences, The Graduate University for Advanced Studies)

Keywords:siliceous microfossils, paleoceanographic reconstruction, Southern Ocean, ecosystem

The hard parts, such as calcareous shell and siliceous valve, of the zoo- and phytoplankton including foraminifers and diatoms are preserved in sediments as microfossil. They have been used to know the sedimentary ages and paleoenvironment. In the Southern Ocean, several paleoceanographic studies have been continued using microfossils from the sediments. However, detailed ecological preference of the marine plankton, which is essential for paleoenvironmental reconstruction, has not completely clarified yet, due to the difficulty of gaining access to the Southern Ocean. In this presentation, we review recent results of the paleoenvironmental reconstruction in the Southern Ocean using siliceous microfossils, and then discuss several problems of paleontological/paleoceanographic studies.