Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085248 |
Fe2S: The Most Fe-Rich Iron Sulfide at the Earth's Inner Core Pressures | |
Tateno, Shigehiko1,2; Ozawa, Haruka2; Hirose, Kei1,3; Suzuki, Toshihiro4,5; I-Kawaguchi, Saori6; Hirao, Naohisa6 | |
2019-11-14 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:21页码:11944-11949 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | We examined the phase relation of Fe2S to 306 GPa and 3,000 K and found that Fe2S forms an orthorhombic structure with space group Pnma above 190 GPa. Reexamination of previous X-ray diffraction data demonstrated that hexagonal close-packed Fe coexists with Pnma Fe2S at >2,700 K and similar to 290 GPa, while it concurs with CsCl (B2)-type stoichiometric FeS at lower temperatures. Our results indicate that Fe2S is the most Fe-rich iron sulfide above similar to 250 GPa where Fe3S is not stable. It is most likely that eutectic melting occurs between Fe and Fe2S at 330 GPa corresponding to inner core boundary conditions, instead of between Fe and Fe3S below 250 GPa. The compression curve of Fe2S obtained to 294 GPa shows that it is not dense enough to account for the inner core density, suggesting that the Fe-Fe2S eutectic liquid gives the maximum sulfur concentration in the outer core. |
英文关键词 | Fe2S inner core outer core DAC high pressure |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496467500001 |
WOS关键词 | EQUATION-OF-STATE ; MELTING EXPERIMENTS ; PHASE-RELATIONS ; FE-FE3S SYSTEM ; GPA ; SULFUR ; ALLOY ; SI |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225015 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Tokyo Inst Technol, Earth Life Sci Inst, Tokyo, Japan; 2.Okayama Univ, Inst Planetary Mat, Tottori, Japan; 3.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo, Japan; 4.Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo, Japan; 5.Univ Tokyo, Geochem Res Ctr, Tokyo, Japan; 6.Japan Synchrotron Radiat Res Inst, Sayo, Hyogo, Japan |
推荐引用方式 GB/T 7714 | Tateno, Shigehiko,Ozawa, Haruka,Hirose, Kei,et al. Fe2S: The Most Fe-Rich Iron Sulfide at the Earth's Inner Core Pressures[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(21):11944-11949. |
APA | Tateno, Shigehiko,Ozawa, Haruka,Hirose, Kei,Suzuki, Toshihiro,I-Kawaguchi, Saori,&Hirao, Naohisa.(2019).Fe2S: The Most Fe-Rich Iron Sulfide at the Earth's Inner Core Pressures.GEOPHYSICAL RESEARCH LETTERS,46(21),11944-11949. |
MLA | Tateno, Shigehiko,et al."Fe2S: The Most Fe-Rich Iron Sulfide at the Earth's Inner Core Pressures".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):11944-11949. |
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