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Sub-microscopic magnetite and metallic iron particles formed by eutectic reaction in Chang'E-5 lunar soil
Zhuang Guo; Chen Li; Yang Li; Yuanyun Wen; Yanxue Wu; Bojun Jia; Kairui Tai; Xiaojia Zeng; Xiongyao Li; Jianzhong Liu; Ziyuan Ouyang
2022
Source PublicationNature Communications
Abstract

Ferric iron as well as magnetite are rarely found in lunar samples, and their distribution and formation mechanisms on the Moon have not been well studied. Here, we discover sub-microscopic magnetite particles in Chang’E-5 lunar soil. Magnetite and pure metallic iron particles are embedded in oxygen-dissolved iron-sulfide grains from the Chang’E-5 samples. This mineral assemblage indicates a FeO eutectoid reaction (4FeO = Fe3O4 + Fe) for formation of magnetite. The iron-sulfide grains’ morphology features and the oxygen’s distribution suggest that a gas–melt phase reaction occurred during large-impact events. This could provide an effective method to form ubiquitous sub-microscopic magnetite in fine lunar soils and be a contributor to the presentation of ferric iron on the surface of the Moon. Additionally, the formation of sub-microscopic magnetite and metallic iron by eutectoid reaction may provide an alternative way for the formation of magnetic anomalies observed on the Moon.

DOI10.1038/s41467-022-35009-7
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Indexed BySCI
Language英语
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Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13551
Collection月球与行星科学研究中心
天体地球化学研究组
Affiliation1.Center for Lunar and Planetary Sciences, Institute of Geochemistry, Chinese Academy of Sciences, 550081, Guiyang, China
2.Institute of Remote Sensing and Geographical Information System, School of Earth and Space Sciences, Peking University, 100871, Beijing, China
3.College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
4.Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, 650093, Kunming, China
5.Center for Excellence in Comparative Planetology, Chinese Academy of Sciences, 230026, Hefei, China
6.Guangdong University of Technology, 510006, Guangzhou, China
7.State Key Laboratory of Continental Dynamics and Department of Geology, Northwest University, 710069, Xi’an, China
Recommended Citation
GB/T 7714
Zhuang Guo,Chen Li,Yang Li,et al. Sub-microscopic magnetite and metallic iron particles formed by eutectic reaction in Chang'E-5 lunar soil[J]. Nature Communications,2022.
APA Zhuang Guo.,Chen Li.,Yang Li.,Yuanyun Wen.,Yanxue Wu.,...&Ziyuan Ouyang.(2022).Sub-microscopic magnetite and metallic iron particles formed by eutectic reaction in Chang'E-5 lunar soil.Nature Communications.
MLA Zhuang Guo,et al."Sub-microscopic magnetite and metallic iron particles formed by eutectic reaction in Chang'E-5 lunar soil".Nature Communications (2022).
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