Japan Geoscience Union Meeting 2015

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International Session (Oral)

Symbol S (Solid Earth Sciences) » S-IT Science of the Earth's Interior & Techtonophysics

[S-IT04] Rheology of Earth's Interior

Thu. May 28, 2015 4:15 PM - 6:00 PM 106 (1F)

Convener:*Tomohiro Ohuchi(Geodynamics Research Center, Ehime University), Shun-ichiro Karato(Yale University, Department of Geology and Geophysics), Katsuyoshi Michibayashi(Institute of Geosciences, Shizuoka University), Chair:Katsuyoshi Michibayashi(Institute of Geosciences, Shizuoka University)

Recently, rheological properties of minerals, which form the interior of the Earth, have been understood. We need to revisit the dynamics of the Earth based on recent results, and we seek to formulate future directions of the study of rheology. We welcome contributions on rheological properties (i.e., ductile/semi-brittle/plastic flow, seismic anisotropy and attenuation, and so on) of the lithosphere, asthenosphere, and core of the Earth, from a broad variety of disciplines including mineral and rock physics, geology, geodynamics and any other relevant fields. Topics related to transportation properties of materials in the interior of the Earth are also welcomed.

4:15 PM - 4:30 PM

★ [SIT04-13] In situ creep strength measurement on ringwoodite up to 1700 K at 17-18 GPa using a deformation-DIA apparatus

*Takaaki KAWAZOE1, Yu NISHIHARA2, Tomohiro OHUCHI2, Genta MARUYAMA3, Yuji HIGO4, Ken-ichi FUNAKOSHI5, Tetsuo IRIFUNE2 (1.Bayerisches Geoinstitut, University of Bayreuth, Bayreuth D-95440, Germany, 2.Geodynamics Research Center, Ehime University, Ehime 790-8577, Japan, 3.Earthquake Research Institute, University of Tokyo 113-0032, Japan, 4.Japan Synchrotron Research Institute, Hyogo 679-5198, Japan, 5.Research Center for Neutron Science and Technology, Ibaraki 319-1906, Japan)

5:00 PM - 5:15 PM

[SIT04-16] Dislocation mobility in ringwoodite as a function of temperature and water content

*Hongzhan FEI1, Daisuke YAMAZAKI1, Hiroaki OHFUJI2, Takafumi YAMAMOTO3 (1.Institute for Study of the Earth Interior, Okayama University, Misasa, Tottori, 682-0193, Japan, 2.Geodynamics Research Center, Ehime University, Matsuyama, 790-8577, Japan, 3.Department of Earth and Planetary Systems Science, Hiroshima University, Hiroshima, 739-8526, Japan)