[B-PT04] Biotic History

Thu. May 25, 2023 3:30 PM - 4:45 PM 301A (International Conference Hall, Makuhari Messe)

convener:Isao Motoyama(Faculty of Science, Yamagata University), Takao Ubukata(Division of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University), Kazuyoshi Moriya(Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University), Chairperson:Isao Motoyama(Faculty of Science, Yamagata University), Takao Ubukata(Division of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University), Kazuyoshi Moriya(Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University)

The Biotic History session covers all aspects of ancient life and the history of biosphere through the geologic time. The study of ancient life is essential for unveiling mysteries of our planet earth. It also provides evidence for evolution of oceans, continents and island arcs. Modern progress in this field has been enhanced by interdisciplinary collaboration with allied sciences, such as paleoceanography and evolutionary biology. Our session intends to be a hub of communication amongst all earth scientists studying the biosphere; we welcome biological and biogeochemical approaches toward the understanding of the history of life.

+Add all to schedule

3:30 PM - 3:45 PM

[BPT04-01] Behavior of phosphorous during the 2.7 Ga submarine hydrothermal activities at Abitibi Greenstone Belt, Canada

*Yuki Takashina¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

3:45 PM - 4:00 PM

[BPT04-02] Green sea hypothesis: coevolution of photosynthetic organism and habitat

*Kumiko Ito-Miwa^1,2, Yuri I. Fujii³, Kanno Satomi², Taro Matsuo^1,2 (1.Graduate school of Science, Nagoya University, 2.Institute for Advanced Research, Nagoya University, 3.Graduate School of Human and Environmental Studies, Kyoto University)

4:00 PM - 4:15 PM

[BPT04-03] Seasonal temperature gradients during the middle Cretaceous northwestern Pacific region recorded in bivalve fossil carbonates

*Shunta Ichimura¹, Hideko Takayanagi², Yasufumi Iryu², Satoshi Takahashi¹, Tatsuo Oji³ (1.Department of Earth and Environmental Sciences, Graduate school of environmental studies, Nagoya University, 2.Department of Earth Science, Graduate School of Science, Tohoku University, 3.Nagoya University Museum)

4:15 PM - 4:30 PM

[BPT04-04] Morphological differences and ontogenetic modification in genetic types of planktic foraminifer Pulleniatina obliquiloculata

*Issui Ikuma¹, Takuma Suzuki², Katsunori Kimoto³, Takashi Okamoto⁴, Yurika Ujiie² (1.Biological Sciences, Science and Technology, Kochi University, 2.Center for Advanced Marine Core Research, Kochi University, 3.JAMSTEC, 4.Ehime University)

4:30 PM - 4:45 PM

[BPT04-05] An animal crisis caused by pollution, deforestation, and warming and exacerbated by nuclear war will occur in the late 21st century

*Kunio Kaiho¹ (1.Tohoku University)

Session information