中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
New Insight Into Lunar Regolith-Forming Processes by the Lunar Rover Yutu-2

文献类型:期刊论文

作者Lin, Honglei6; Lin, Yangting6; Yang, Wei6; He, Zhiping5; Hu, Sen6; Wei, Yong6; Xu, Rui5; Zhang, Jinhai6; Liu, Xiaohui4; Yang, Jianfeng3
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2020-07-28
卷号47期号:14
ISSN号0094-8276;1944-8007
DOI10.1029/2020GL087949
产权排序4
英文摘要

The Yutu-2 rover of the Chang'E-4 spacecraft observed many meter-sized shallow pits fully covered with small fragments, distinct from the typical rock-free impact craters with comparable sizes in the landing area. The unique morphology of the pits and the visible and near-infrared spectra of the fragments suggest that the fragments are broken pieces of impact melt-conglutinated regolith breccia projectiles, which were excavated from preexisting craters. The rareness of rock on the landing area surface suggests that the preexisting craters were probably small in size (e.g., <60 m in diameter), not large enough to penetrate the thick regolith (similar to 12 m) and to excavate the beneath rock breccia and/or bedrock. The presence of the impact melts was confirmed by the glass-like spectra of some fragments with unusually high albedo and blue-green tint in the centers of the pits. These observations reveal the gardening and consolidating processes on the Moon. Plain Language Summary There are very rare outcrops of bedrock on the lunar surface because the Moon is covered by the lunar regolith. The detailed formation processes of the lunar regolith are important for understanding the orbiting and landing exploration data, and for planning future sample return missions. The lunar rover Yutu-2 discovered fragment-filled pits and identified in situ impact glass in the fragments. The glass-bearing and regolith-like fragments were probably broken pieces of lunar regolith breccia projectiles, which were excavated from the consolidated bottom and walls of preexisting small craters within the lunar regolith (<12-15 m in thickness). These observations contribute to our understanding of the formation processes of the lunar regolith.

语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000556707300035
源URL[http://ir.opt.ac.cn/handle/181661/93638]  
专题西安光学精密机械研究所_月球与深空探测技术研究室
通讯作者Lin, Yangting
作者单位1.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China
2.Beijing Inst Control Engn, Beijing, Peoples R China
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian, Peoples R China
4.Beijing Aerosp Control Ctr, Beijing, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Space Act Optoelect Technol, Shanghai, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Lin, Honglei,Lin, Yangting,Yang, Wei,et al. New Insight Into Lunar Regolith-Forming Processes by the Lunar Rover Yutu-2[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(14).
APA Lin, Honglei.,Lin, Yangting.,Yang, Wei.,He, Zhiping.,Hu, Sen.,...&Zou, Yongliao.(2020).New Insight Into Lunar Regolith-Forming Processes by the Lunar Rover Yutu-2.GEOPHYSICAL RESEARCH LETTERS,47(14).
MLA Lin, Honglei,et al."New Insight Into Lunar Regolith-Forming Processes by the Lunar Rover Yutu-2".GEOPHYSICAL RESEARCH LETTERS 47.14(2020).

入库方式: OAI收割

来源:西安光学精密机械研究所

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