Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076177 |
Experimental Constraints on Ferropericlase (Mg, Fe)O Melt Viscosity Up to 70GPa | |
Du, Zhixue1,2; Deng, Jie1; Lee, Kanani K. M.1 | |
2017-12-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | During Earth's accretion, Earth's mantle is expected to have been a magma ocean due to large impacts. As such, properties of molten mantle materials are key to understanding Earth's thermochemical evolution. However, due to experimental challenges, transport properties at lower mantle pressures, particularly viscosity, are poorly constrained for mantle melts. In this study, we use quenched dendritic textures to estimate melt viscosities at high pressures for (Mg, Fe)O ferropericlase, one of the major components of the mantle. We find that the viscosity of (Mg, Fe)O melt near liquidus temperatures is similar to 10(-3)-10(-2)Pas over the pressure range of 3-70GPa, which is similar to 1-2 orders of magnitude lower than previous results for Si-rich melts at similar conditions. This may have implications for magma ocean cooling and thermochemical evolution of the mantle. |
英文关键词 | melt viscosity magma ocean high pressure diamond anvil cell dendrites diffusion |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422954700056 |
WOS关键词 | HIGH-PRESSURE ; TRANSPORT-PROPERTIES ; MG2SIO4 LIQUID ; GIANT IMPACT ; MAGMA ; MANTLE ; DIFFERENTIATION ; DIFFUSION ; FAYALITE ; SYSTEM |
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/29125 |
专题 | 气候变化 |
作者单位 | 1.Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA; 2.Carnegie Inst Sci, Geophys Lab, Washington, DC 20005 USA |
推荐引用方式 GB/T 7714 | Du, Zhixue,Deng, Jie,Lee, Kanani K. M.. Experimental Constraints on Ferropericlase (Mg, Fe)O Melt Viscosity Up to 70GPa[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(24). |
APA | Du, Zhixue,Deng, Jie,&Lee, Kanani K. M..(2017).Experimental Constraints on Ferropericlase (Mg, Fe)O Melt Viscosity Up to 70GPa.GEOPHYSICAL RESEARCH LETTERS,44(24). |
MLA | Du, Zhixue,et al."Experimental Constraints on Ferropericlase (Mg, Fe)O Melt Viscosity Up to 70GPa".GEOPHYSICAL RESEARCH LETTERS 44.24(2017). |
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