Japan Geoscience Union Meeting 2015

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-TT Technology & Techniques

[M-TT44] Frontiers in Geochemistry: Prospect for geochemistry in 30 years

Tue. May 26, 2015 4:15 PM - 6:00 PM 102B (1F)

Convener:*Takafumi Hirata(Graduate School of Science, Kyoto University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Urumu Tsunogai(Graduate School of Environmental Studies, Nagoya University), Hajime Obata(Marine inorganic chemistry division, Atmosphere and Ocean Research Institute, University of Tokyo), Shogo Tachibana(Department of Natural History Scieces, Hokkaido University), Katsuhiko Suzuki(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Gen Shimoda(Geological Survey of Japan, AIST), Hiroyuki Kagi(Geochemical Laboratory, Graduate School of Science, University of Tokyo), Yusuke Yokoyama(Atmosphere and Ocean Research Institute, University of Tokyo), Tetsuya Yokoyama(Department of Earth and Planetary Sciences, Graduate School of Science and Engineering, Tokyo Institute of Technology), Chair:Takafumi Hirata(Graduate School of Science, Kyoto University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

5:30 PM - 5:45 PM

[MTT44-08] My identity as a geochemist in mineral physics

*Hiroyuki KAGI1 (1.Graduate School of Science, The University of Tokyo)

Keywords:high pressure, neutron diffraction, organic compounds

In the long-standing progress of earth sciences, the interplay between seismology and high-pressure mineral physics greatly contributed to understanding of deep earth. It is my understanding that scientists in these fields establish the communities and share the observational data, large facilities and so on. In contrast, it seems to me that many of geochemists, including myself in a sense, construct their own laboratories equipping state-of-the-art device. The difference in research style is noteworthy and may give a clue to the breakthrough of traditional geochemistry.
One of my research interests is to investigate the structure and properties of hydrous materials which potentially exists in deep earth. To achieve these research projects in Japan, I joined to a research consortium and we have constructed a new high-pressure beamline at the spallation neutron source, J-PARC for deep-earth mineralogy. We have been studying structures of hydrous materials and ices; recent progress will be introduced in my talk.
Recently, our attention is focused into chemical evolution of organic materials during planetary shock bombardment process generating high pressure and high temperature simultaneously. We try to understand temperature-induced reaction and pressure-induced reaction independently. Our recent study on pressure-induced reactions on organic compounds and insights into evolution of organic materials will be introduced.