Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085654 |
The Fate of Liquids Trapped During the Earth's Inner Core Growth | |
Lasbleis, M.1,2; Kervazo, M.1; Choblet, G.1 | |
2020-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Japan |
英文摘要 | The growth history of the inner core is inherently linked to the thermal history of the Earth. The crystallization of the inner core may have been delayed by supercooling and gone through an initial phase of fast growth after the nucleation barrier has been passed, but so far no evidence or constraint has been proposed to time this possible event. With two-phase flow dynamics, we explore the effect of different growth scenarios for the inner core to determine their effects on its liquid fraction structure. Seismic observations on the melt fraction inside the inner core at present limit the porosity to a maximum of 10% of liquid. Our model provides constraints for the delay in nucleation compared to the time where the first crystal may have started to nucleate, and we find that the supercooling cannot have exceeded 100 K. |
英文关键词 | core inner core supercooling two-phase flow compaction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000517154600023 |
WOS关键词 | EQUATORIAL ANISOTROPY ; 2-PHASE MODEL ; OUTER CORE ; COMPACTION ; EVOLUTION ; VISCOSITY ; BOUNDARY ; WAVES ; CRYSTALLIZATION ; DEFORMATION |
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/279536 |
专题 | 气候变化 |
作者单位 | 1.Univ Angers, Univ Nantes, CNRS, LPG,UMR 6112, Angers, France; 2.Tokyo Inst Technol, Earth Life Sci Inst, Meguro Ku, Tokyo, Japan |
推荐引用方式 GB/T 7714 | Lasbleis, M.,Kervazo, M.,Choblet, G.. The Fate of Liquids Trapped During the Earth's Inner Core Growth[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(2). |
APA | Lasbleis, M.,Kervazo, M.,&Choblet, G..(2020).The Fate of Liquids Trapped During the Earth's Inner Core Growth.GEOPHYSICAL RESEARCH LETTERS,47(2). |
MLA | Lasbleis, M.,et al."The Fate of Liquids Trapped During the Earth's Inner Core Growth".GEOPHYSICAL RESEARCH LETTERS 47.2(2020). |
条目包含的文件 | 条目无相关文件。 |
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