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Lunar regolith and substructure at Chang'E-4 landing site in South Pole-Aitken basin
Alternative TitleWOS:000566887400001
Zhang, Jinhai; Zhou, Bin1; Lin, Yangting; Zhu, Meng-Hua; Song, Hanjie3; Dong, Zehua1; Gao, Yunze1; Di, Kaichang4; Yang, Wei; Lin, Hongyu5; Yang, Jianfeng6; Liu, Enhai7; Wang, Lei3; Lin, Yi; Li, Chao; Yue, Zongyu4; Yao, Zhenxing; Ouyang, Ziyuan8
Source PublicationNATURE ASTRONOMY
2020
DOI10.1038/s41550-020-1197-x
ISSN2397-3366
Language英语
KeywordEJECTA DISTRIBUTION SHOCK METAMORPHISM QUARTZ SAND IMPACT CRATER SUBSURFACE MOON ORIGIN MARE SERENITATIS
AbstractThe South Pole-Aitken (SPA) basin is the oldest and largest impact structure on the Moon, and it gives particular insight on the lunar interior composition(1-3). However, the surface of the SPA basin has been substantially modified by consequent impacts and basalt flooding. The exploration of the surficial material and the substructure of the SPA basin is one of the main scientific goals of the Chinese spacecraft Chang'E-4 that landed in the Von Karman crater inside the SPA basin(4,5). Here we report the lunar penetrating radar profiles along the track of the lunar rover Yutu-2, which show a three-unit substructure at the landing site. The top unit consists of the similar to 12-m-thick lunar regolith and similar to 120 m multilayered ejecta that were delivered from several adjacent craters. The middle unit is the mare basalts filling the Von Karman crater. The lowest unit is another ejecta layer with a thickness of >= 200 m, likely from the Leibnitz crater. These discoveries fully support the local stratigraphy and geological explanation presented previously(6). Our results reveal that the surface materials at the Chang'E-4 landing site are unambiguously dominated by the ejecta from the Finsen crater with a minor contribution from other neighbouring craters. The regolith measured by Yutu-2 is representative of the initial lunar deep interior materials, rather than the later erupted basalts.
Indexed BySCI
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7572
Collection中国科学院国家空间科学中心
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Aerosp Informat Res Inst, Key Lab Electromagnet Radiat & Detect Technol, Beijing, Peoples R China
3.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China
4.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China
5.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing, Peoples R China
6.Beijing Inst Space Mech & Elect, Beijing, Peoples R China
7.Chinese Acad Sci, Xiian Inst Opt & Precis Mech, Xian, Peoples R China
8.Chinese Acad Sci, Inst Opt & Elect, Chengdu, Peoples R China
9.Chinese Acad Sci, Inst Geochem, Guiyang, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jinhai,Zhou, Bin,Lin, Yangting,et al. Lunar regolith and substructure at Chang'E-4 landing site in South Pole-Aitken basin[J]. NATURE ASTRONOMY,2020.
APA Zhang, Jinhai.,Zhou, Bin.,Lin, Yangting.,Zhu, Meng-Hua.,Song, Hanjie.,...&Ouyang, Ziyuan.(2020).Lunar regolith and substructure at Chang'E-4 landing site in South Pole-Aitken basin.NATURE ASTRONOMY.
MLA Zhang, Jinhai,et al."Lunar regolith and substructure at Chang'E-4 landing site in South Pole-Aitken basin".NATURE ASTRONOMY (2020).
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