[M-IS18] Paleoclimatology and paleoceanography

Fri. May 27, 2022 10:45 AM - 12:15 PM 304 (International Conference Hall, Makuhari Messe)

convener:Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University), convener:Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Akitomo Yamamoto(Japan Agency for Marine-Earth Science and TechnologyAtmosphere and Ocean Research Institute), convener:Atsuko Yamazaki(Faculty of Science, Kyushu University), Chairperson:Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University)

We discuss past environmental changes and events at interannual to tectonic timescale toward understanding Earth's climate system by integrating terrestrial and marine proxy studies and numerical modeling. At JpGU2022, in addition to the regular session, we will have a topic session on "Climate Models" in commemoration of Dr. Syukuro Manabe's Nobel Prize in Physics, including a variety of paleoclimate models for various time-scales, proxy-model comparison, and future projection models. We hope that this session will provide an opportunity to promote communication between participants from the multidisciplinary field.

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10:45 AM - 11:00 AM

[MIS18-17] Early Pleistocene Paleoceanography around the Kuroshio region based on the past sea surface temperature from calcareous nannofossils

*Daisuke Kuwano¹, Soki Hirota¹, Koji Kameo¹, Masayuki Utsunomiya², Makoto Okada³ (1.Chiba University, 2.National Institute of Advanced Industrial Science and Technology, 3.Ibaraki University)

11:00 AM - 11:15 AM

[MIS18-18] Paleoceanographic and paleoclimatic reconstructions during mid-Piacenzian Warm Period from a marine succession in the Boso Peninsula

*Yuki Haneda¹, Makoto Okada², Yoshimi Kubota³, Misao Hongo⁴ (1.Geological Survey of Japan, AIST, 2.Department of Earth Sciences, College of Science, Ibaraki University, 3.National Museum of Nature and Science, 4.Alps Technical Research Laboratory Co.,Ltd.)

11:15 AM - 11:30 AM

[MIS18-19] Orbital-Scale Fluctuations in the Japan-Sea Miocene Diatomaceous Sediment and Application to Cyclostratigraphy – An Example of the Nakayama Formation on Sado Island in Niigata Prefecture, Japan

*Jumpei Yoshioka¹, Junichiro Kuroda², Kenji Matsuzaki², Sota Niki³, Takafumi Hirata³ (1.Department of Earth and Planetary Science, the University of Tokyo, 2.Atmosphere and Ocean Research Institute, the University of Tokyo, 3.Geochemical Research Center, the University of Tokyo)

11:30 AM - 11:45 AM

[MIS18-20] Can Mg and Li isotopes in the authigenic and detrital fractions of sediments be used to trace paleoweathering? Case study: The EOT

*Adam David Sproson¹, Toshihiro Yoshimura¹, Takahiro AZE², Shigeyuki Wakaki³, Tsuyoshi Ishikawa³, Yusuke Yokoyama^1,2, Naohiko Ohkouchi¹ (1.Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

11:45 AM - 12:00 PM

[MIS18-21] Chemical weathering and volcanism during the early Paleogene hothouse constrained from the marine osmium isotope record in the central North Pacific Ocean

*Kakeru Ikegami¹, Kazutaka Yasukawa¹, Erika Tanaka^3,2,1, Junichiro Ohta^1,2, Yusuke Kuwahara¹, Moei Yano^2,1, Koichiro Fujinaga^2,1, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.Department of Systems innovation, School Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.Reserch Institute for Marine Geodynamics, JAMSTEC)

12:00 PM - 12:15 PM

[MIS18-22] The Paleogene seawater osmium isotope record reconstructed from carbonate sediments in the Indian Ocean: Implications for the chemical weathering feedback against the Eocene hyperthermals

★Invited Papers

*Yusuke Kuwahara¹, Kazutaka Yasukawa^3,1, Junichiro Ohta^3,2, Moei Yano^2,3, Kazuhide Mimura², Erika Tanaka⁴, Koichiro Fujinaga^2,3, Kentaro Nakamura^1,2, Yasuhiro Kato^3,1 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 4.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology)

Session information