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Volume 21 Issue 5
Oct 2010
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Takaaki Kawazoe, Tomohiro Ohuchi, Norimasa Nishiyama, Yu Nishihara, Tetsuo Irifune. Preliminary Deformation Experiment of Ringwoodite at 20 GPa and 1 700 K Using a D-DIA Apparatus. Journal of Earth Science, 2010, 21(5): 517-522. doi: 10.1007/s12583-010-0120-2
Citation: Takaaki Kawazoe, Tomohiro Ohuchi, Norimasa Nishiyama, Yu Nishihara, Tetsuo Irifune. Preliminary Deformation Experiment of Ringwoodite at 20 GPa and 1 700 K Using a D-DIA Apparatus. Journal of Earth Science, 2010, 21(5): 517-522. doi: 10.1007/s12583-010-0120-2

Preliminary Deformation Experiment of Ringwoodite at 20 GPa and 1 700 K Using a D-DIA Apparatus

doi: 10.1007/s12583-010-0120-2
Funds:

the Global Center of Excellence Program "Deep Earth Mineralogy" 

the Ministry of Education, Culture, Sports, Science, and Technology of the Japanese Government 

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  • Corresponding author: Takaaki Kawazoe, kawazoe@sci.ehime-u.ac.jp
  • Received Date: 20 May 2010
  • Accepted Date: 12 Jul 2010
  • Publish Date: 01 Oct 2010
  • A deformation experiment of ringwoodite with a strain of 9% was achieved at 20 GPa and 1 700 K and at a strain rate of 3×10−5 s−1 using a deformation-DIA (D-DIA) apparatus and a multi-anvil 6-6 (MA 6-6) assembly. The crystallographic orientations of the deformed sample were successfully analyzed by the electron backscatter diffraction (EBSD) method, although any notable lattice-preferred orientation (LPO) was not observed presumably due to the insufficient strain in the present experiment. In this study, the deformation experiment on ringwoodite succeeded at P-T conditions consistent with the lower part of the mantle transition zone and at a controlled strain rate for the first time. The present study extended the pressure range of deformation experiments in the D-DIA apparatus from 16 GPa in our earlier study to 20 GPa at 1 700 K. The successful extension of the pressure range demonstrates potential importance of the D-DIA apparatus in studying rheological properties of minerals under the P-T conditions of the whole mantle transition zone.

     

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