[M-IS28] Evolution of Pelagic Realm

Sat. Jun 5, 2021 1:45 PM - 3:15 PM Ch.26 (Zoom Room 26)

convener:Atsushi Matsuoka(Department of Geology, Faculty of Science, Niigata University), Toshiyuki Kurihara(Graduate School of Science and Technology, Niigata University), Junichiro Kuroda(Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, the University of Tokyo), XIN LI(State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences), Chairperson:Atsushi Matsuoka(Department of Geology, Faculty of Science, Niigata University), Junichiro Kuroda(Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, the University of Tokyo)

This session focuses on the evolution of ecosystem and physical-chemical environments in the pelagic realm, including discussions on all aspects of pelagic biota covering evolution, biostratigraphy, biochronology, and biogeography, which are important to the reconstruction of the spatiotemporal framework in the pelagic realm. Reconstructions of plate configuration through time are included in the scope of this session. Biological, geochemical, and sedimentological approaches to the pelagic environments are welcomed. Science on form encompasses everything from plankton to outer space. We will discuss the evolution of the Panthalassa-Pacific Ocean since the scientific research vessel JOIDES Resolution comes back to the Pacific in 2023-2024.

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1:45 PM - 2:00 PM

[MIS28-01] Toward a global correlation of the Jurassic–Cretaceous boundary among pelagic, neritic and terrestrial sequences in the Pacific and Asia

*Atsushi Matsuoka¹ (1.Department of Geology, Faculty of Science, Niigata University)

2:00 PM - 2:15 PM

[MIS28-02] Early Cretaceous anti-tropical radiolarians of from Tibet at the breakup timing of Gondwana

*XIN LI¹, Noritoshi Suzuki², Peter Baumgartner⁴, Atsushi Matsuoka³ (1.State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 2.Institute of Geology and Paleontology, Gradute School of Science, Tohoku University, 3.Department of Geology, Faculty of Science, Niigata University, 4.Institut des sciences de la Terre, Université de Lausanne)

2:15 PM - 2:30 PM

[MIS28-03] Repeated organic-rich deposition in Early Triassic pelagic deep Panthalassa and its relationship with global seafloor anoxia

*Shun Muto¹ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

2:30 PM - 2:45 PM

[MIS28-04] Marine Os isotope record from the uppermost Barremian to the lowest Turonian

*Hironao Matsumoto¹, Rodolfo Coccioni², Fabrizio Frontalini², Kotaro Shirai¹, Junichiro Kuroda¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.University of Urbino)

2:45 PM - 3:00 PM

[MIS28-05] Depositional ages of multiple REY peaks in deep-sea sediments around Minamitorishima Island based on osmium isotope stratigraphy

*Yuta Oda¹, Junichiro Ohta^1,2, Erika Tanaka¹, Kazutaka Yasukawa^1,2, Yusuke Kuwahara¹, Moei Yano^2,1, Koichiro Fujinaga^2,1, Kentaro Nakamura¹, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

3:00 PM - 3:15 PM

[MIS28-06] Depositional environments of the Late Cretaceous REY-rich mud in the western North Pacific Ocean inferred from deep-water agglutinated foraminifers

*Kondo Yuta¹, Junichiro Ohta^1,2, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Koichiro Fujinaga^2,1, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

Session information