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DOI | 10.1029/2021GL095341 |
Copernican-aged (<200 Ma) Impact Ejecta at the Chang’e-5 Landing Site: Statistical Evidence from Crater Morphology, Morphometry and Degradation Models | |
Yuqi Qian; Long Xiao; James W. Head; Christian Wö; hler; Roberto Bugiolacchi; Thorsten Wilhelm; Stephanie Althoff; Binlong Ye; Qi He; Yuefeng Yuan; Siyuan Zhao | |
2021-10-04 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Chang’e-5 successfully returned ∼1,731 g of lunar samples on December 17, 2020. We systematically studied the morphology and morphometry of craters surrounding the Chang’e-5 site based on high-resolution images. A key ejecta source crater database was produced, incorporating their morphometrical parameters, excavation depth, target rock types, and ages from either crater counting, crater morphology or degradation methods. We found that 1) the regolith at the Chang’e-5 site is ∼4-6 m thick, 2) ejecta are primarily from five proximal craters, including Xu Guangqi, dominantly with ages <200 Ma; 3) distal materials are mainly from Harpalus, Copernicus, Aristarchus, and Mairan G craters; 4) the drill samples are likely to be mainly from Impact Crater (IC)-261 and IC-265 particles at the top and the contribution of Xu Guangqi increases with depth; 5) the ejecta of Xu Guangqi would buried pre-existing materials but probably overturned by post-impacts. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/339981 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yuqi Qian,Long Xiao,James W. Head,等. Copernican-aged (<200 Ma) Impact Ejecta at the Chang’e-5 Landing Site: Statistical Evidence from Crater Morphology, Morphometry and Degradation Models[J]. Geophysical Research Letters,2021. |
APA | Yuqi Qian.,Long Xiao.,James W. Head.,Christian Wö.,hler.,...&Siyuan Zhao.(2021).Copernican-aged (<200 Ma) Impact Ejecta at the Chang’e-5 Landing Site: Statistical Evidence from Crater Morphology, Morphometry and Degradation Models.Geophysical Research Letters. |
MLA | Yuqi Qian,et al."Copernican-aged (<200 Ma) Impact Ejecta at the Chang’e-5 Landing Site: Statistical Evidence from Crater Morphology, Morphometry and Degradation Models".Geophysical Research Letters (2021). |
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