[M-TT51] Frontiers in Geochemistry

convener:Shogo Tachibana(UTokyo Organization for Planetary and Space Science, University of Tokyo ), Yusuke Yokoyama(Atmosphere and Ocean Research Institute, University of Tokyo), Hiroyuki Kagi(Geochemical Research Center, Graduate School of Science, University of Tokyo)

In modern earth and planetary sciences, many new findings have been obtained by using state-of-the-art technique. These new findings include highly precise and accurate data, which is supported by recent developments of the new analytical methods. To use these data correctly and effectively, we need to deepen our knowledge on the methodology. This session aims at providing an opportunity for various geoscientists to get together and have a strategic discussion on frontiers in geochemistry and cosmochemistry. Especially, researchers, who would like to apply such innovative techniques, will have chances to discuss with those who work on devising new geochemical methods. We welcome a wide range of cutting-edge geochemical topics, including technical development, which have a potential for breakthrough of earth and planetary sciences. Any presentations related to the direction of geochemistry and cosmochemistry in future are also welcome. We expect wide-ranged and future-oriented discussion to develop geochemistry and cosmochemistry. We ntote that a presenter can choose his/her presentation language (English or Japanese) in this session.

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[MTT51-01] Current status and future perspective of high-resolution X-ray microscope at Photon Factory

★Invited Papers

*Daisuke Wakabayashi¹ (1.Institute of Materials Structure Science, High Energy Accelerator Research Organization)

[MTT51-02] High-energy µ-XRF-XAFS analysis of ion-adsorption-type rare earth deposit using the synchrotron radiation X-ray µ-beam

*Makoto Nagasawa¹, Ohki Sekizawa², Kiyofumi Nitta², Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Japan Synchrotron Radiation Research Institute)

[MTT51-03] New analytical technique for determination of minor and trace element in zircon by using solid mixing calibration technique with multiple spot-laser ablation-ICP-MS

*Hisashi Asanuma¹, Yoshiki Makino¹, Takafumi Hirata¹, Masahiro KAYAMA² (1.Geochemical Research Center, The University of Tokyo, 2.Department of General Systems Studies, The University of Tokyo)

[MTT51-04] Distribution and geochemical behavior of anthropogenic rare earth elements in two coastal environments

Tomohiro Shimazaki¹, *Hajime Obata¹, Hirofumi Tazoe², Shigeyoshi Otosaka¹, Shigenobu Takeda³ (1.Marine inorganic chemistry division, Atmosphere and Ocean Research Institute, University of Tokyo, 2.Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, 3.Graduate School of Fisheries and Environmental Sciences, Nagasaki University )

[MTT51-05] Low background In-situ ¹⁰Be AMS analysis using improved Be extraction method

*Yosuke Miyairi^1,2, Yusuke Yokoyama^2,3, Yoshiki Shirahama¹ (1.National Institute of Advanced Industrial Science and Technology, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3. Graduate School of Science, The University of Tokyo)

[MTT51-06] Intensification of Antarctic chemical silicate weathering during the EOT revealed by Mg and Li isotopes

*Adam David Sproson^1,2, Toshihiro Yoshimura², Takahiro Aze¹, Yusuke Yokoyama^1,2, Naohiko Ohkouchi², Tsuyoshi Ishikawa³, Shigeyuki Wakaki³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 3.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)