NAOC Open IR
A rocky hill on the continuous ejecta of Ziwei crater revealed by the Chang'e-3 mission
Ding Chunyu1; Cai Yuzhen1; Xiao Zhiyong1; Su Yan2
2020
Source PublicationEarth and Planetary Physics
ISSN2096-3955
Volume4Issue:2Pages:105
AbstractThe Chinese Chang'e-3 mission landed close to the eastern rim of the ~450 m diameter Ziwei crater. Regional stratigraphy of the landing site and impact excavation model suggest that the bulk continuous ejecta deposits of the Ziwei crater are composed by Erathothenian-aged mare basalts. Along the traverse of the Yutu rover, the western segment features a gentle topographic uplift(~0.5 m high over ~4 m), which is spatially connected with the structurally-uplifted crater rim. Assuming that this broad topographic uplift has physical properties discontinuous with materials below, we use data returned by the high-frequency lunar penetrating radar onboard the Yutu rover to estimate the possible range of relative permittivity for this topographic uplift. Only when the relative permittivity is ~9 is the observed radar reflection consistent with the observed topography, suggesting that the topographic uplift is composed of basaltic blocks that were excavated by the Ziwei crater. This result is consistent both with the impact excavation model that predicts deeper basaltic materials being deposited closer to the crater rim, and with observation of numerous half-buried boulders on the surface of this hill. We note that this study is the first to use topography and radargram data to estimate the relative permittivity of lunar surface uplifts, an approach that has had many successful applications on Mars. Similar approaches can apply other ground penetrating radar data for the Moon, such as will be available from the ongoing Chang'e-4 mission.
Keywordlunar penetrating radar impact crater ejecta deposits Chang'e-3 permittivity Moon
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/67568
Collection中国科学院国家天文台
Affiliation1.中山大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Ding Chunyu,Cai Yuzhen,Xiao Zhiyong,et al. A rocky hill on the continuous ejecta of Ziwei crater revealed by the Chang'e-3 mission[J]. Earth and Planetary Physics,2020,4(2):105.
APA Ding Chunyu,Cai Yuzhen,Xiao Zhiyong,&Su Yan.(2020).A rocky hill on the continuous ejecta of Ziwei crater revealed by the Chang'e-3 mission.Earth and Planetary Physics,4(2),105.
MLA Ding Chunyu,et al."A rocky hill on the continuous ejecta of Ziwei crater revealed by the Chang'e-3 mission".Earth and Planetary Physics 4.2(2020):105.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ding Chunyu]'s Articles
[Cai Yuzhen]'s Articles
[Xiao Zhiyong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ding Chunyu]'s Articles
[Cai Yuzhen]'s Articles
[Xiao Zhiyong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ding Chunyu]'s Articles
[Cai Yuzhen]'s Articles
[Xiao Zhiyong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.