Development of the elastic wave velocity measurement technique under lower mantle conditions using sinter diamond anvil

• Project/Area Number: 24740315
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Solid earth and planetary physics
• Research Institution: Japan Synchrotron Radiation Research Institute
• Principal Investigator: HIGO Yuji 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 研究員 (10423435)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 下部マントル / 超音波 / 弾性波速度 / 川井型高圧装置 / 高温高圧 / 弾性波速度測定 / 超音波法

Outline of Final Research Achievements

we improved the ultrasonic measurement system to obtain the elastic wave velocity under the condition of the lower mantle region, installing the high frequency waveform generator, the post amplifier and the semiconductor with a high-speed relay in the Kawai-type multi-anvil apparatus (SPEED-1500) at SPring-8.We successfully obtained the elastic wave velocities of the lower mantle mineral up to 50GPa and 1073K, corresponding to the lower mantle P-T conditions.

Research Products

• [Journal Article] Elastic wave velocity of polycrystalline Mj80Py20 garnet to 21 Gpa and 2000 K (2015)
  • Author(s): Z. Liu, T. Irifune, S. Greaux, T. Arimoto, T. Shinmei, Y. Higo
  • Journal Title: Phys. Chem. Miner. Volume: 42(3) Issue: 3 Pages: 213-222
  • DOI: 10.1007/s00269-014-0712-y
  • Peer Reviewed / Open Access
• [Journal Article] Sound velocities measurement on MgSiO3 akimotoite at high pressures and high temperatures with simultaneous in situ X-ray diffraction and ultrasonic study (2014)
  • Author(s): C. Zhou, S. Greaux, N. Nishiyama, T. Irifune, Y. Higo
  • Journal Title: Phys. Earth Planet. Inter. Volume: 228 Pages: 97-105
  • DOI: 10.1016/j.pepi.2013.06.005
  • Peer Reviewed
• [Journal Article] Unusual pressure effect on the shear modulus in MgAl2O4 spinel (2013)
  • Author(s): Y. Zou, S. Greaux, T. Irifune, B. Li, Y. Higo
  • Journal Title: Journal of Physical Chemistry C Volume: 117 Issue: 46 Pages: 24518-24526
  • DOI: 10.1021/jp404901a
  • Peer Reviewed
• [Journal Article] Sound velocity measurements in liquid Fe-S at high pressure: Implications for Earth's and lunar cores (2013)
  • Author(s): Nishida, et al.
  • Journal Title: Earth and Planetary Science Letters Volume: 362 Pages: 182-186
  • DOI: 10.1016/j.epsl.2012.11.042
  • Peer Reviewed
• [Journal Article] Simultaneous sound velocity and density measurements of NaCl at high temperatures and high pressures: application as a primary pressure standard (2012)
  • Author(s): M. Matsui
  • Journal Title: Amer. Mineral. Volume: 97 Issue: 10 Pages: 1670-1675
  • DOI: 10.2138/am.2012.4136
  • Peer Reviewed
• [Journal Article] Sound velocities of MORB and absence of a basaltic layer in the mantle transition region (2012)
  • Author(s): Y. Kono, T. Irifune, H. Ohfuji, Y. Higo, K. Funakoshi
  • Journal Title: Geophys. Res. Lett. Volume: 39 Issue: 24
  • DOI: 10.1029/2012gl054009
  • Peer Reviewed
• [Journal Article] Elasticity and sound velocities of polycrystalline Mg3Al2(SiO4)3 garnet up to 20 GPa and 1700 K (2012)
  • Author(s): Y. Zou
  • Journal Title: J. Appl. Phys. Volume: 112 Issue: 1 Pages: 14910-14910
  • DOI: 10.1063/1.4736407
  • Peer Reviewed
• [Presentation] Development of Ultrasonic Measurement Technique under Lower Mantle Conditions (2015)
  • Author(s): 肥後祐司
  • Organizer: ACHPR-7
  • Place of Presentation: タイ・バンコク Chulalongkorn University
  • Year and Date: 2015-01-16 – 2015-01-18
  • Invited
• [Presentation] 焼結ダイヤモンドを用いた下部マントル条件下での弾性波速度測定技術開発
  • Author(s): 肥後祐司、舟越賢一、入舩徹男、松井正典
  • Organizer: 第54回高圧討論会
  • Place of Presentation: 朱鷺メッセ（新潟市中央区）
• [Presentation] Development of the elastic wave velocity measurement technique by the ultrasonic method to lower mantle condition
  • Author(s): Higo, Y., Funakoshi, K., Irifune, T.
  • Organizer: AGU Fall Meeing 2012
  • Place of Presentation: San Francisco, USA
• [Presentation] 下部マントル構成鉱物の弾性波速度測定
  • Author(s): 肥後祐司，舟越賢一，入舩徹男
  • Organizer: 第53回高圧討論会
  • Place of Presentation: 大阪大学
• [Presentation] Development of the elastic wave velocity measurement technique by the ultrasonic method up to 30 Gpa
  • Author(s): Higo, Y
  • Organizer: IUCrHP2012/QuBS2012
  • Place of Presentation: Mito, Japan