[S-EM15] Geomagnetism and paleomagnetism

Tue. May 23, 2023 9:00 AM - 10:15 AM 303 (International Conference Hall, Makuhari Messe)

convener:Yutaka Yoshimura(Faculty of Social and Cultural Studies, Kyushu University), Yoichi Usui(Kanazawa University), Chairperson:Yutaka Yoshimura(Faculty of Social and Cultural Studies, Kyushu University), Chie Kato(Faculty of Social and Cultural Studies, Kyushu University), Yu Kitahara(Faculty of Social and Cultural Studies, Kyushu University)

We are going to discuss the issues on the magnetic fields of the Earth and extraterrestrial bodies, paleomagnetism, rock magnetism, and their applications. This session includes following topics: (1) observations and analysis of the magnetic fields of the Earth and other planets, (2) paleomagnetic field variations obtained from natural and archaeological materials, (3) numerical and laboratory studies on the magnetic field generations in the Earth and planets, (4) measurements and theories of magnetic properties of rocks, minerals, meteorites, and other materials, (5) climate changes and surface tectonics based on magnetic measurements of rocks and sediments, (6) observations and models of the surface magnetic anomalies of the Earth and extraterrestrial bodies, and (7) related developments of the measurement methods and data analysis. We also encourage papers stimulating interdisciplinary collaborations relating to the establishment of the SEDI-Japan community. The presentations and discussions will be made in Japanese or English. We also encourage presentations of students and young researchers.

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9:00 AM - 9:15 AM

[SEM15-01] Temporal change in rock-magnetic properties of volcanic ashes ejected during a one-year eruption event: Aso Nakadake 2019–2020 eruption

*Chisato Anai¹, Takahiro Ohkura², Shin Yoshikawa², Nobutatsu Mochizuki³ (1.Center for Advanced marine Core Research, Kochi Univercity, 2. Aso Volcanological Laboratory, Kyoto Univercity, 3.Kumamoto Univercity)

9:15 AM - 9:30 AM

[SEM15-02] Rock-magnetic and paleomagnetic studies of returned samples from asteroid (162173) Ryugu

*Masahiko Sato¹, Yuki Kimura², Satoshi Tanaka³, Tadahiro Hatakeyama⁴, Seiji Sugita¹, Tomoki Nakamura⁵, Shogo Tachibana¹, Satoshi Okuzumi⁶, Sei-ichiro WATANABE⁷, Hisayoshi Yurimoto², Takaaki Noguchi⁸, Ryuji Okazaki⁹, Hikaru Yabuta¹⁰, Hiroshi Naraoka⁹, Sakamoto Kanako³, Toru Yada³, Masahiro Nishimura³, Aiko Nakato³, Akiko Miyazaki³, Kasumi Yogata³, Masanao Abe³, Tatsuaki Okada³, Tomohiro Usui³, Makoto Yoshikawa³, Takanao Saiki³, Fuyuto Terui¹¹, Satoru Nakazawa³, Yuichi Tsuda³ (1.The University of Tokyo, 2.Hokkaido University, 3.Japan Aerospace Exploration Agency, 4.Okayama University of Science, 5.Tohoku University, 6.Tokyo Institute of Technology, 7.Nagoya University, 8.Kyoto University, 9.Kyushu University, 10.Hiroshima University, 11.Kanagawa Institute of Technology)

9:30 AM - 9:45 AM

[SEM15-03] On the changes in geomagnetic field strength during Yayoi era in Japan

*Tadahiro Hatakeyama¹, Hirotaka Yokota², Yu Kitahara¹, Naoko Nakamura³ (1.Institute of Frontier Science and Technology, Okayama University of Science, 2.Department of Biosphere-Geosphere Science, Okayama University of Science, 3.Research Center for Archaeology, Kagoshima University)

9:45 AM - 10:00 AM

[SEM15-04] On generation processes of the dipole/quadrupole-family magnetic field in kinematic dynamos

*Futoshi Takahashi¹, Yuki Nonaka² (1.Faculty of Sciences, Kyushu University, 2.Graduate School of Science, Kyushu University)

10:00 AM - 10:15 AM

[SEM15-05] Geomagnetic field generation mechanisms driven by outer core convection with a stably stratified layer

*PRIYABRATA MUKHERJEE¹, SWARANDEEP SAHOO¹ (1.INDIAN INSTITUTE OF TECHNOLOGY (INDIAN SCHOOL OF MINES) DHANBAD)

Session information