Multidisciplinary and Interdisciplinary (M)
Session Sub-category General Geosciences, Information Geosciences & Simulations(GI)
Session ID M-GI32
Title Cretaceous Earth Dynamics and Climate in Asia: Insights from IGCP Project 679
Short Title Cretaceous Dynamics and Climate in Asia
Main Convener Name Tohru Ohta
Affiliation Faculty of Education and Integrated Arts and Sciences, Waseda University
Co-Convener 1 Name Takashi Hasegawa
Affiliation Faculty of Geoscience and Engineering, Institute of Science and Engineering, Kanazawa University
Session Language 
E
Scope 
The Cretaceous greenhouse world was characterized by extreme warmth, high CO2 levels, oceanic anoxic events, and significant ecosystem changes. Asia provides extensive sedimentary, fossil, and geochemical archives that record these phenomena across diverse settings. IGCP Project 679 (Cretaceous Earth Dynamics and Climate in Asia) aims to integrate stratigraphic, paleontological, geochemical, and modeling approaches to reconstruct climate variability, ocean circulation, and Earth system feedback in this interval. This JpGU-AGU session, organized as a project workshop, will present new findings from across Asia while promoting global collaboration. Topics include stratigraphic correlation, high-resolution geochemical proxies, records of oceanic anoxic events and mass extinctions, paleogeographic reconstructions, and terrestrial ecosystem responses. The session encourages participation from students, early-career researchers, and international collaborators. Discussion time will be provided to strengthen the links between IGCP 679 members and the wider scientific community, thereby enhancing the integration of Asian records into global Cretaceous climate research.
Presentation Format Oral and Poster presentation
Invited Authors Li Gang (Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences)
Time Presentation No Title Presenter
Oral Presentation May 24 AM2
10:45 - 11:00 MGI32-01 Progress of IGCP 679: Cretaceous Earth Dynamics and Climate in Asia Gang Li
11:00 - 11:15 MGI32-02 Osmium isotopic record across the Aptian–Albian boundary in the Lower Cretaceous Sanchu Group, central Japan Yui Tsukada
11:15 - 11:30 MGI32-03 Late Cretaceous environmental changes in the northwestern Pacific margin inferred from fluctuations in organic matter composition Taiga Tomaru
11:30 - 11:45 MGI32-04 High-resolution bio- and carbon isotope stratigraphy of the Turonian/Coniacian and Santonian/Campanian boundaries in the NW Pacific. Kosuke Takahashi
11:45 - 12:00 MGI32-05 Insignificant coupling between terrestrial carbon cycle and global climate during the hothouse Oceanic Anoxic Event 2 of the Cretaceous Xianghui Li
12:00 - 12:15 MGI32-06 Atmospheric CO2 during the Aptian: New Evidence from Sedimentary Carbon Isotopes in NE China Jianfang Hu
Presentation No Title Presenter
Poster Presentation May 24 PM3
MGI32-P01 Preservation and paleoecological implications of bird track-bearing deposits from the Cretaceous Seongpori Formation, Geoje Island, South Korea Hyun Joo Kim
MGI32-P02 What drove the diversity of Early Cretaceous ostracods along the northern margin of the North China Craton? Yaqiong Wang
MGI32-P03 Depositional age and provnenace of the Creataceous Cheonsuman Basin, Korea inferred from detrital zircon geochronology Taejin Choi
MGI32-P04 Aridification associated with intraplate deformation across the Jurassic–Cretaceous transition in the Junggar Basin, NW China Tenichi Cho
MGI32-P05 Weathering intensity and climatic conditions in the Asian equatorial region during the Cretaceous: Insights from the geochemistry and mineralogy of sediments in Borneo (East Malaysia). Thi Nga Pham
MGI32-P06 Paleoclimate Analysis Based on Chemical Weathering Intensity in the Cretaceous Kanmon Group, Yamaguchi Prefecture, SW Japan Eisuke Miyamoto
MGI32-P07 Occurrence of compositionally mature sediments in East Asian active margin during the earliest Cretaceous Tohru Ohta