Japan Geoscience Union Meeting 2022

Session information

[E] Poster

S (Solid Earth Sciences ) » S-CG Complex & General

[S-CG45] Frontier of Earth's Interior and Dynamics

Mon. May 30, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (26) (Ch.26)

convener:Hiroko Watanabe(Research Center for Neutrino Science, Tohoku University), convener:Natsue Abe(Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology ), Tamano Omata(Japan Agency for Marine-Earth Science and Technology), convener:William F McDonough(Department of Earth Science and Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan), Chairperson:Tamano Omata(Japan Agency for Marine-Earth Science and Technology)

The physical, compositional, and biological state of the present day Earth is a product of a myriad dynamical process over the last 4.5 billion years resulting in a complexly layered structure (core- mantle-crust-biosphere-atmosphere) with various exchanges between layers. Accretion and early di!erentiation resulted in a gravitationally stabilized metallic core, and a silicate Earth that rapidly degassed and di!erentiated to form a crust-ocean system and a distinctive distribution of the radiogenic, heat producing elements in the Earth.

Significant discussion continues on the planform of mantle convective, the structure, mineralogy and composition of the mantle. The role of biology in shaping the oxygen content of the atmosphere, the oxidation state and composition of the crust and possibly that of the mantle is increasingly being recognized and documented. Paramount in the advancement of our science is the role that technological development. Advances in seismic imaging of Earth's interior, drilling deep into the crust and mantle, sensing the deep biosphere, measuring di!erences in the surface flux of geoneutrinos are transforming our understanding of the Earth.

Contributions from biology, seismology, geochemistry, geodynamics, mineral physics and neutrino geophysics are welcomed to this interdisciplinary session that will provide new constraints on and insights into Earth.

11:00 AM - 1:00 PM

*Hiroko Watanabe1, Kunio Inoue1, Taichi Sakai1, William F McDonough1,2,3, Natsue Abe4, Eiichiro Araki5, Takafumi Kasaya5, Masanori Kyo5, Kenta Ueki5, Tamano Omata5, Yasuhiro Yamada6 (1.Research Center for Neutrino Science, Tohoku University, 2.Department of Earth Science, Tohoku University, 3.University of Maryland, 4.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology, 5.Japan Agency for Marine-Earth Science and Technology, 6.Kyushu University)

11:00 AM - 1:00 PM

*Natsue Abe1,2, Keishi Okazaki3, Ikuo Katayama4, Kohei Hatakeyama5, Yuya Akamatsu4, Kumpei Nagase4 (1.Mantle Drilling Promotion Office, MarE3, Japan Agency for Marine-Earth Science and Technology , 2.Graduate School of Natural Science& Technology, Kanazawa University, 3.KCC, X-Star, Japan Agency for Marine-Earth Science and Technology , 4.Hiroshima University, 5.Meisei University)

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