Experimental Simulation of Planetary Formation Processes

行星形成过程的实验模拟

• 批准号: 02402019
• 负责人: TAKAHASHI Eiichi
• 金额: $ 16.9万
• 依托单位: TOKYO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02402019/
• 关键词: high pressure; multi-anvil; Earth; planet; high pressure experiments; mantle; core; magma; 月; 隕石; マグマオーシャン; ペリドタイト; 高温高圧実験; 惑星形成; マルチアン.ビル

In order to study the early history of the Earth and other planets, we have installed an uniaxial multi-anvil type high pressure apparatur (SPI-1000) at the Earth and Planetary Sciences Department, Tokyo Institute of Technol ogy using the above grant in 1991.A very detailed experimental melting study on earth's mantle peridotite has been carried out with SPI-1000. Liqui dus and solidus curves were determined up to 17 GPa and 2300 deg. C which is equivalent ot approximately 500 km depth of the terrestrial magma ocean. This study has been highly appreci at ed from the world scientists. Invited papers were present ed at the International Geological Congress, Kyoto Autust 1992, at the Royal Society of London Special Symposium, March 1992 and at the American Geophysical Union, 1993 Fall Meting.Melting temperature of iron metal hydride (FeH) was studied using the SPI-1000 up to 10 GPa. The metig temperatre at 5 GPa was determined to be 1200 deg. C.which is in well accordance with the insitu-X-ray observation by Fukai et al (1993). In addition, we discovered that the melting temperature lowers with increasing pressure (i.e., 800 deg. C.at 10 GPa). Our experiments imply that the temperature f the earth's cre might be much lower than revusly thught if substantial amount of FeHis incororated.

为了研究地球和其他行星的早期历史，我们在1991年使用上述赠款的Tokyo Technitute ogy Institute of Tokyo ogy安装了地球和行星科学系的单轴多型型高压疗法（SPI-1000）。确定酒精du和固相的曲线高达17 GPA和2300度。 C是陆地岩浆海洋深度约500公里的OT。这项研究对世界科学家的ED受到了高度赞赏。 1992年3月，在伦敦皇家学会特别研讨会上，在国际地质大会，1992年京都Autust的国际地质大会上发表了邀请的论文，并使用SPI-1000最高10 GPA研究了1993年的美国地球物理联盟。 5 GPA处的METIG温度确定为1200度。 C.这与Fukai等人（1993年）的Intu-X射线观察息息相关。此外，我们发现熔化温度随压力升高（即800度C.AT 10 GPA）降低。我们的实验表明，如果大量的FEHIS不正确，地球的CRE温度可能远低于而经的thught。

项目成果

高橋 栄一: "マントルの化学的非均質構造" 地震. 44. 217-232 (1991)

高桥荣一：“地幔的化学异质结构”地震 44. 217-232 (1991)。

E.Takahashi and M.Ito: Melting phase relations of mantle peridotite up to 25 GPa.TERRAPUB, 450 (1990)

E.Takahashi 和 M.Ito：高达 25 GPa 的地幔橄榄岩的熔融相关系。TERRAPUB，450 (1990)

E.Takahashi, T.Shimazaki, Y.Tsuzaki, H.Yoshida: "Melting study of a peridotite KLB-1 to 6.5 GPa, and the origin of basaltic magmas." Phil.Trans.R.Soc.London. A342. 105-120 (1993)

E.Takahashi、T.Shimazaki、Y.Tsuzaki、H.Yoshida：“橄榄岩 KLB-1 至 6.5 GPa 的熔化研究以及玄武质岩浆的起源。”

E.TAKAHASHI: "Melting Phase Relations of Mantle Peridotite up to 25 GPa:Speculations on the Origin and Evolution of the Earth's Mantle" Dynamic Processes of Material Trasport and Transformation in the Earth's Interior. 253-275 (1990)

E.TAKAHASHI：“地幔橄榄岩高达 25 GPa 的熔化相关系：对地幔起源和演化的推测”地球内部物质传输和转化的动态过程。

E.Takahashi and M.Ito: "Melting phase relations of mantle peridotite up to 25GPa." TERRAPUB, 450 (1990)

E.Takahashi 和 M.Ito：“高达 25GPa 的地幔橄榄岩的熔融相关系”。