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

2014 Fiscal Year Final Research Report

• 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
• 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

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.

Free Research Field

固体地球科学