[M-IS15] Paleoclimatology and Paleoceanography

Tue. May 23, 2023 9:00 AM - 10:15 AM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

convener:Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University), Atsuko Yamazaki(Graduate School of Environmental Studies, Nagoya University), Takashi Obase(Atmosphere and Ocean Research Institute, The University of Tokyo), 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 JpGU2023, in addition to the regular session, we will have a topic session on innovative methodology and non-conventional research during post COVID-19 time. We hope that this session will provide an opportunity to promote communication between participants from the multidisciplinary field.

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9:00 AM - 9:15 AM

[MIS15-01] Interannual- to orbital-scale terrestrial paleoclimatic change during the early/middle Eocene Transition (EMET): evidence from annually laminated lacustrine deposits of the Green River Formation, northeastern Utah, USA

*Hitoshi Hasegawa¹, Hiroki Momose¹, Hirofumi Asahi¹, Ryusei Kuma², Jessica WHITESIDE³ (1.Kochi Univ., 2.Nagoya Univ., 3.Southampton Univ.)

9:15 AM - 9:30 AM

[MIS15-02] Factors for the long-term climatic trends in the early Eocene hothouse world: Implications from the seawater osmium isotope record of the Indian Ocean sediments

*Yusuke Kuwahara¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^2,3, Moei Yano^3,2, Kazuhide Mimura^3,2, Erika Tanaka^4,3, Koichiro Fujinaga^3,2, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 3.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 4.Center for Advanced Marine Core Research, Kochi University)

9:30 AM - 9:45 AM

[MIS15-03] Chemical characterization of multiple hyperthermal events in the early Paleogene Hothouse reconstructed from seafloor sediments of the Campbell Plateau, South Pacific Ocean

*Kazutaka Yasukawa¹, Erika Tanaka^2,3, Ann G. Dunlea⁴, Ingrid Hendy⁵, Bryan Niederbockstruck⁶, Ursula Röhl⁶, Minoru Ikehara², Kentaro Nakamura^1,3, Yasuhiro Kato^1,3 (1.School of Engineering, The University of Tokyo, 2.Center for Advanced Marine Core Research, Kochi University, 3.ORCeNG, Chiba Institute of Technology, 4.Woods Hole Oceanographic Institution, 5.University of Michigan, 6.MARUM - Center of Marine Environmental Sciences, University of Bremen)

9:45 AM - 10:00 AM

[MIS15-04] A study of changes in weathering flux sensitity to radiative forcing from the Cretaceous to the present day using a climate model

*Taro Higuchi¹, Ayako Abe-Ouchi¹, Wing-Le Chan¹ (1.Atmospheric and Ocean Research Institute, the University of Tokyo)

10:00 AM - 10:15 AM

[MIS15-05] Responses of the biogeochemical sulfur cycle to Early Permian tectonic and climatic events

*Hyosang Kwon¹, Min Sub Sim ¹, Jusun Woo¹, Jae Ryong Oh⁴, Young Ji Joo², Sangmin Lee ⁵, Hans Nakrem ³ (1.School of Earth and Environmental Sciences, Seoul National University, 2.Department of Earth and Environmental Sciences, Pukyong National University, 3.Natural History Museum, University of Oslo, 4.Korean Foundation for Quality, 5.GeoQuEST Research Centre, School of Earth)

Session information