[S-EM17] 地磁気・古地磁気・岩石磁気

2026年5月28日(木) 13:45 〜 15:15 展示場特設会場 (7) (幕張メッセ国際展示場 7・8ホール)

座長:山本裕二(高知大学海洋コア国際研究所)、谷元瞭太(茨城大学)、小田啓邦(産業技術総合研究所地質情報研究部門)

The remarkable progress in Earth Sciences today owes much to our understanding of Earth's magnetic field. This session invites contributions on the latest advances in geomagnetism, paleomagnetism, rock magnetism, and their wide-ranging applications to geophysical and geological problems. We welcome presentations on topics such as the geodynamo, present and ancient geomagnetic field behavior, fundamental rock magnetic properties, paleogeography including tectonic processes, and insights into paleoclimate. In addition, we encourage submissions related to satellite- and ground-based magnetic field observations, studies of lunar and planetary magnetism, and magnetic investigations of meteorites, which are new windows into planetary evolution and solar system history. We also welcome innovative methodologies, software tools, and instrumentation that support and expand these research frontiers. Through this session, we aim to foster forward-looking discussions that will inspire future breakthroughs in magnetism-related Earth and planetary sciences. We encourage contributions that stimulate interdisciplinary collaborations toward establishing the SEDI-Japan community.

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13:45 〜 14:10

[SEM17-01] Multidecadally to centennially resolved field behavior associated with geomagnetic excursions over the last glacial cycle

Yu-Min Chou¹, Xiang Zhao², Huihui Yang¹, Xiuyang Jiang³, Qingsong Liu¹, Hsun-Ming Hu⁴, Chun-Che Wu⁵, Tsai-Lun Yu⁶, Chun-Yuan Huang⁴, Wei Zheng¹, Xiaodong Jiang⁷, Yufeng Lin¹, Jinfeng Li¹, Jiabo Liu⁸, Chun-Chieh Wang⁹, Cheng-Cheng Chiang⁹, Peng Han¹, Yaoqi He¹⁰, Zhiqiang Liu¹, Yansong Li¹, *Andrew P Roberts², Chuan-Chou Shen⁴ (1. Southern University of Science and Technology, 2. Australian National University, 3. Fujian Normal University, 4. National Taiwan University, 5. Nanjing Normal University, 6. National Academy of Marine Research, 7. Hainan University, 8. China University of Geosciences (Wuhan), 9. National Synchrotron Radiation Research Center, 10. Guizhou Minzu University)

14:10 〜 14:25

[SEM17-02] A Remarkably Extended Eocene Geomagnetic Reversal Revealed by Sedimentary Records at IODP Site U1408

*山本裕二¹、スラーボーリラ²、高橋太³、リッパートピーター⁴ (1. 高知大学海洋コア国際研究所、2. ソルボンヌ大学、3. 九州大学、4. ユタ大学)

14:25 〜 14:40

[SEM17-03] 房総半島南端地域に分布する海成層の第四系基底部付近におけるボーリングコアから得られた高時間分解能を持つガウス−松山地磁気逆転記録

*岡田誠¹、柚原涼花²、長友大輝²、菅沼悠介^4,3 (1. 茨城大学基礎自然科学野地球環境科学領域、2. 茨城大学大学院理工学研究科、3. 国立極地研究所、4. 総合研究大学院大学)

14:40 〜 14:55

[SEM17-04] 房総半島南端，千倉層群布良層に記録された後期鮮新世の地磁気エクスカーション

*谷元瞭太¹、岡田誠¹ (1. 茨城大学　基礎自然科学野)

14:55 〜 15:10

[SEM17-05] Apparent decrease of relative paleointensity proxy in deep-sea surface sediments of several tens of centimeters below the seafloor

*山崎俊嗣^1,2、山本裕二¹、佐藤哲郎¹、村山雅史¹ (1. 高知大学海洋コア国際研究所、2. 東京大学大気海洋研究所)

Discussion (15:10 〜 15:15)

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