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，我们于1991年利用上述拨款在东京工业大学地球与行星科学系安装了单轴多砧式高压装置（SPI-1000）使用SPI-1000对地幔橄榄岩进行了非常详细的实验熔融研究。测定了高达 17 GPa 和 2300 度的液相线和固相线曲线。 C相当于陆地岩浆海洋约500公里的深度。这项研究得到了世界科学家的高度赞赏。特邀论文发表于 1992 年京都国际地质大会、1992 年 3 月伦敦皇家学会特别研讨会和 1993 年美国地球物理联合会秋季会议。 SPI-1000 高达 10 GPa。 5 GPa 下的测量温度确定为 1200 ℃。 C.这与 Fukai 等人 (1993) 的原位 X 射线观察结果非常一致。此外，我们发现熔化温度随着压力的增加而降低（即 10 GPa 下的 800 摄氏度）。我们的实验表明，如果掺入大量的FeHis，地球表面的温度可能比我们想象的要低得多。

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”。