| DOI: | 10.1002/2014GL061954
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| 论文题名: | High-pressure melting of MgO from (Mg,Fe)O solid solutions |
| 作者: | Du Z.; Lee K.K.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9591
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| EISSN: | 1944-9322
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| 出版年: | 2014
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| 卷: | 41, 期:22 | | 起始页码: | 8061
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| 结束页码: | 8066
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| 语种: | 英语
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| 英文关键词: | ferropericlase
; high pressure melting
; magnesium oxide
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| Scopus关键词: | Earth (planet)
; Experimental mineralogy
; High pressure engineering
; Magnesium
; Melting
; Planets
; Ab initio prediction
; Core-mantle boundary
; Earth's mantle
; Ferropericlase
; High pressure melting
; High temperature behavior
; Laser-heated diamond anvil cells
; Planetary interiors
; Magnesia
; experimental study
; high pressure
; high temperature
; mantle
; melting
; oxide
; prediction
; solar system
; temperature effect
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| 英文摘要: | Magnesium oxide (MgO) is a significant component of planetary interiors, particularly Earth's mantle and other rocky planets within and beyond our solar system; thus its high-pressure, high-temperature behavior is important to understanding the thermochemical evolution of planets. Laser-heated diamond-anvil cell (DAC) experiments on (Mg,Fe)O ferropericlase up to ~40 GPa show that previous DAC experiments on MgO melting are too low, while previous multi-anvil experiments yield melting temperatures too high. Instead, our quasi-static experimental results are consistent with recent ab initio predictions as well as dynamic shock measurements. Extrapolated to the core-mantle boundary (CMB) of the Earth, MgO is expected to melt at ~8000 ± 500 K, much greater than expected geotherm temperatures. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923368535&doi=10.1002%2f2014GL061954&partnerID=40&md5=8ce4e7618d56bad44f34333f8a810af5
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6855
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Geology and Geophysics, Yale University, New Haven, CT, United States
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| Recommended Citation: | |
Du Z.,Lee K.K.M.. High-pressure melting of MgO from (Mg,Fe)O solid solutions[J]. Geophysical Research Letters,2014-01-01,41(22).
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