中文版 | English
Title

Experimental Evidence Supporting an Overturned Iron-Titanium-Rich Melt Layer in the Deep Lunar Interior

Author
Corresponding AuthorXu, Man; Jing, Zhicheng
Publication Years
2022-07-16
DOI
Source Title
ISSN
0094-8276
EISSN
1944-8007
Volume49Issue:13
Abstract
Dense Fe-Ti-rich cumulates, formed as the last dregs of the lunar magma ocean, are thought to have driven a large-scale overturn of the lunar mantle over 4 Ga ago. Analysis of lunar seismic data has implied that some of the overturned bodies may have reached the lunar core-mantle boundary and remained there until the present day as a partially molten layer. However, whether such a molten layer could be stable during >4 Ga of post-magma-ocean lunar history and explain lunar seismic observations remains poorly constrained. Here, we report the first sound velocity measurements on a Fe-Ti-rich lunar melt up to conditions of the lowermost lunar mantle. Our results suggest that a partial melt layer with at least 20% overturned Fe-Ti-rich melt can be trapped atop the lunar core-mantle boundary until the present day, strongly influencing the thermochemical evolution of the lunar interior.
Keywords
URL[Source Record]
Indexed By
SCI ; EI
Language
English
Important Publications
NI Journal Papers
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[41974098] ; National Science Foundation["EAR-1619964","1620548"] ; National Science Foundation-Earth Sciences[EAR-1634415] ; Department of Energy-Geosciences[DE-FG02-94ER14466] ; DOE Office of Science[DE-AC02-06CH11357] ; NSF MRI[EAR-1531583]
WOS Research Area
Geology
WOS Subject
Geosciences, Multidisciplinary
WOS Accession No
WOS:000822803200001
Publisher
EI Accession Number
20222912359248
EI Keywords
Equations of state ; Iron ; Moon ; Seismology ; Titanium
ESI Classification Code
Earthquake Measurements and Analysis:484.1 ; Titanium and Alloys:542.3 ; Iron:545.1 ; Extraterrestrial Physics and Stellar Phenomena:657.2 ; Acoustic Waves:751.1
ESI Research Field
GEOSCIENCES
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/355836
DepartmentDepartment of Earth and Space Sciences
Affiliation
1.Univ Chicago, Ctr Adv Radiat Sources, Chicago, IL 60637 USA
2.Case Western Reserve Univ, Dept Earth Environm & Planetary Sci, Cleveland, OH 44106 USA
3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China
Corresponding Author AffilicationDepartment of Earth and Space Sciences
Recommended Citation
GB/T 7714
Xu, Man,Jing, Zhicheng,Van Orman, James A.,et al. Experimental Evidence Supporting an Overturned Iron-Titanium-Rich Melt Layer in the Deep Lunar Interior[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(13).
APA
Xu, Man,Jing, Zhicheng,Van Orman, James A.,Yu, Tony,&Wang, Yanbin.(2022).Experimental Evidence Supporting an Overturned Iron-Titanium-Rich Melt Layer in the Deep Lunar Interior.GEOPHYSICAL RESEARCH LETTERS,49(13).
MLA
Xu, Man,et al."Experimental Evidence Supporting an Overturned Iron-Titanium-Rich Melt Layer in the Deep Lunar Interior".GEOPHYSICAL RESEARCH LETTERS 49.13(2022).
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