[S-EM16] Geomagnetism, paleomagnetism, and rock magnetism

Sun. May 25, 2025 9:00 AM - 10:30 AM 302 (International Conference Hall, Makuhari Messe)

convener:Noriko Kawamura(Japan Coast Guard Academy), Chie Kato(Faculty of Social and Cultural Studies, Kyushu University), Chairperson:Nobutatsu Mochizuki(Department of Earth and Environmental Science, Faculty of Advanced Science and Technology, Kumamoto University)

We will discuss magnetism associated with minerals, the Earth, and beyond. This session will mainly cover the following topics: (1) the magnetic fields of the Earth and other planets, (2) paleomagnetic field variations, (3) numerical and laboratory studies of magnetic field generation, (4) magnetic properties of rocks, minerals, and other materials, (5) surface magnetic anomalies of the Earth and extraterrestrial bodies, and (6) tectonics and paleoclimate reconstructions based on magnetic measurements. We also welcome (7) related developments in measurement methods and data analysis. We encourage contributions that stimulate interdisciplinary collaborations toward establishing the SEDI-Japan community. English slides and presentations will be recommended.

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9:00 AM - 9:15 AM

[SEM16-01] Role on the geodynamo simulation in paleaomagnetic data analysis: Preliminary experiments on polarity reversals

*Takashi Nakagawa¹ (1.Emerging Media Initiative, Kanazawa University)

9:15 AM - 9:30 AM

[SEM16-02] Attempts to produce candidate models for the IGRF-14 (2)

*Masaki Matsushima¹, Takuto Minami², Vincent Lesur³, Shin ya Nakano⁴, Sho Sato⁵, Hiroaki TOH⁵ (1.Department of Earth and Planetary Sciences, School of Science, Institute of Science Tokyo, 2.Department of Planetology, Graduate School of Science, Kobe University, 3.Institute de Physique du Globe de Paris, 4.Institute of Statistical Mathematics, 5.Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University)

9:30 AM - 9:45 AM

[SEM16-03] Thellier paleointensities from ε-Fe2O3 bearing rocks

*Koji Fukuma¹ (1.Department of Environmental System Science, Faculty of Science and Engineering, Doshisha University)

9:45 AM - 10:00 AM

[SEM16-04] Anomalies Magnetic Susceptibility in the Atera fault and their causes

*Yasuhiro Sugitani¹, Tada-nori Goto¹, Kenji Hagiya¹, Nagi Yamashita¹, Riki Kondo¹ (1.University of Hyogo)

10:00 AM - 10:15 AM

[SEM16-05] Rock magnetic changes of seismogenic fault rocks from the exhumed accretionary complex revealed by scanning SQUID microscopy

*Taizo Uchida¹, Hirokuni Oda², Naoto Fukuyo², Yoshitaka Hashimoto¹ (1.Kochi University, 2.Institute of Geology and Geoinformation, Geological Survey of Japan, AIST)

10:15 AM - 10:30 AM

[SEM16-06] Microscopic observation of iron oxide grains in basalts from the Agulhas Plateau drilled during IODP Expedition 392

*Chie Kato¹, Masakazu Fujii^2,3, Yutaka Yoshimura², Courtney J. Sprain⁴, Edoardo Dallanave⁵ (1.Faculty of Social and Cultural Studies, Kyushu University, 2.National Institute of Polar Research, 3.The Graduate University for Advanced Studies, 4.Department of Geological Sciences, University of Florida, 5.Department of Earth Sciences, University of Milan)

Session information