Japan Geoscience Union Meeting 2022

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[J] Poster

S (Solid Earth Sciences ) » S-EM Earth's Electromagnetism

[S-EM15] Geomagnetism, paleomagnetism and rock magnetism

Mon. May 30, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (19) (Ch.19)

convener:Tetsuro Sato(Earthquake Research Institute, The University of Tokyo), convener:Yutaka Yoshimura(Faculty of Social and Cultural Studies, Kyushu University), Chairperson:Tetsuro Sato(Earthquake Research Institute, The University of Tokyo), Yutaka Yoshimura(Faculty of Social and Cultural Studies, Kyushu University)

We are going to discuss the issues on the magnetic fields of the Earth and planets, paleo magnetism, rock-magnetism, and their applications. This session includes following topics: (1) observation and analysis of the magnetic fields of the Earth and other planets, (2) paleomagnetic field variations obtained from natural and archaeological materials, (3) numerical simulations on the magnetic fields of 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 the paleomagnetic measurements of rocks and sediments, (6) observations of the magnetic anomalies and the crustal magnetization models of the Earth, planets, and satellites, and (7) developments of the measurement method and data analysis. We encourage papers stimulating an interdisciplinary collaboration relating to establishment of the SEDI-Japan community. We also encourage presentations of students and young researchers. The presentations and discussions will be made in Japanese or English in this session.

11:00 AM - 1:00 PM

[SEM15-P04] Properties of remanent magnetization carried by magnetotactic bacteria Magnetospirillum magnetotacticum MS-1 in the early stages of sediment formation – system with reduced efficiency of NRM acquisition

*Kohei Masaoka1, Yuki Morono2, Naotaka Tomioka2, Go-Ichiro Uramoto3, Yuhji Yamamoto3, Masao Ohno1 (1.Kyushu University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 3.Kochi University)


11:00 AM - 1:00 PM

[SEM15-P07] Rapid increase of the geomagnetic field intensity in 2000 years ago inferred from archeointensity results using Japanese Yayoi pottery

*Yutaka Yoshimura1, Hyeon-Seon Ahn2,3, Yuhji Yamamoto2, Chisato Anai2, Yoshinori Tajiri1, Tadahiro Hatakeyama4, Masao Ohno1 (1.Faculty of Social and Cultural Studies, Kyushu University, 2.Center for Advanced Marine Core Research, Kochi University, 3.Korea Institute of Geoscience and Mineral Resources, 4.Institute of Frontier Science and Technology, Okayama University of Science)

11:00 AM - 1:00 PM

[SEM15-P08] Archeointensity Study of Yayoi Pottery Excavated from Northern Kyushu using the IZZI Thelleir Method

*Chisato Anai1, Ryousuke Moriki1, Hyeon-Seon Ahn1,3, Yuhji Yamamoto1, Yutaka Yoshimura2, Tadahiro Hatakeyama4, Yoshinori Tajiri2, Masao Ohno2 (1.Center for Advanced Marine Core Research, Kochi Univ., 2.Department of Environmental Changes, Faculty of Social and Cultural Studies, Kyushu University, 3.Korea Institute of Geoscience and Mineral Resources, 4.Institute of Frontier Science and Technology, Okayama University of Science)

11:00 AM - 1:00 PM

[SEM15-P09] Paleomagnetic Dating on Tsunami Boulders from Tongatapu Island and Eua Island, the Kingdom of Tonga

*Tetsuro Sato1, Norihiro Nakamura2, Hiroyuki Nagahama3, Masahiko Sato4, Kazuhisa Goto4, Masashi Watanabe5, Kenji Satake1, Akira Ikeda3, Taaniela Kula6 (1.Earthquake Research Institute, The University of Tokyo, 2.Institute for Excellence in Higher Education, Tohoku University, 3.Department of Earth Science, Tohoku University, 4.Department of Earth and Planetary Science, The University of Tokyo, 5.Faculty of Science and Engineering, Chuo University, 6.Ministry of Lands and Natural Resources)

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