[S-EM17] Geomagnetism, Paleomagnetism and Rock Magnetism

Mon. May 21, 2018 1:45 PM - 3:15 PM A03 (Tokyo Bay Makuhari Hall)

convener:Nobutatsu Mochizuki(Priority Organization for Innovation and Excellence, Kumamoto University), Hisayoshi Shimizu(Earthquake Research Institute, University of Tokyo), Chairperson:Saito Takeshi(Shinshu University), Yamamoto Yuhji

We are going to discuss the issues on the magnetic fields of the Earth and planets, paleomagnetism, rock-magnetism, and their applications. This session includes the following topics: (1) observation and analysis of the magnetic fields of the Earth and 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 global and local 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 experimental method and data analysis. The presentation and discussion will be made in Japanese or English in this session.

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1:45 PM - 2:00 PM

[SEM17-12] Examination of the properties of remanent magnetization carried by magnetotactic bacteria Magnetospirillum magnetotacticum MS-1

*Kohei Masaoka¹, Yusei Kataoka¹, Yuki Morono², Naotaka Tomioka², Goichiro Uramoto¹, Nana Yoshikane¹, Yuhji Yamamoto¹ (1.Kochi University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

2:00 PM - 2:15 PM

[SEM17-13] DRM lock-in depth and magnetofossils

*Toshitsugu Yamazaki¹, Yukihiro SAKURAMOTO¹, Kazuho Horiuchi², Yusuke Suganuma³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Hirosaki University, 3.National Institute of Polar Research)

2:15 PM - 2:30 PM

[SEM17-14] Reduction of spurious magnetic phases in thermomagnetic experiments of sedimentary rocks using reductive chemical treatments.

*Chisato Anai¹, Hidetoshi Shibuya¹, Nobutatsu Mochizuki^1,2 (1.Dep't Earth & Env. Sci., Kumamoto Univ., 2.Priority Organization for Innovation and Excellence, Kumamoto Univ.)

2:30 PM - 2:45 PM

[SEM17-15] Comprehensive study of the relationship between exsolved magnetite inclusions and host plagioclase crystal in gabbroic rocks

*Masahiko Sato¹, Masashi Ushioda², Ryoichi Nakada³ (1.The University of Tokyo, 2.National Institute of Advanced Industrial Science and Technology, 3.Japan Agency for Marine-Earth Science and Technology)

2:45 PM - 3:00 PM

[SEM17-16] Experimental verification of the age gap by paleomagnetic viscous remanence

Takayuki Tonosaki², *Norihiro Nakamura¹, Tetsuro Sato² (1.Tohoku Univ. Institute for Excellence in Higher Education, 2.Tohoku Univ.)

Discussion (3:00 PM - 3:15 PM)

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