新观测数据揭示嫦娥六号着陆区微观尺度地质特征

Geological characteristics of Chang'E-6 landing area in micro-scale unveiled by new observation data.

作者信息

Yan Wei, Zeng Xingguo, Ren Xin, Chen Wangli, Gao Xingye, Zuo Wei, Liu Bin, Zhang Zhoubin, Fu Qiang, Liu Jianjun, Li Chunlai

机构信息

Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, 100101, Beijing, China.

School of Astronomy and Space Science, University of Chinese Academy of Sciences, 100049, Beijing, China.

出版信息

Nat Commun. 2025 May 6;16(1):4219. doi: 10.1038/s41467-025-59443-5.

DOI:10.1038/s41467-025-59443-5

PMID:40328779

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12056222/

Abstract

Chang'E-6 mission successfully achieved humanity's first sample return from the farside of the Moon. Here, we report a high-precision terrain dataset with millimeter-to-decimeter spatial resolution around the CE-6 landing site. Based on this dataset, the accurate location of the landing site is determined to be (153.9776° W, 41.6251° S, -5273 m), and a micro-scale geological analysis of the landing area is conducted. Comparative analysis suggests that the surface exposure time of Chang' E-6 landing area is likely between that of Chang'E-4 and Chang'E-5 landing areas. Studies of the ejecta thickness from possible craters in mare and non-mare areas indicate that Chang'E-6 samples may contain materials from diverse provenances. Detailed topographic analysis reveals that the Chang'E-6 landing area is primarily covered by local mare materials, which were excavated from a nearby unnamed crater with a diameter of ~ 51 m and account for 30%-35% in volume.

摘要

嫦娥六号任务成功实现了人类首次从月球背面采样返回。在此，我们报告了一个围绕嫦娥六号着陆点的具有毫米至分米空间分辨率的高精度地形数据集。基于该数据集，确定着陆点的精确位置为（西经153.9776°，南纬41.6251°，-5273米），并对着陆区域进行了微观尺度的地质分析。对比分析表明，嫦娥六号着陆区的地表暴露时间可能介于嫦娥四号和嫦娥五号着陆区之间。对月海和非月海区域可能存在的撞击坑喷出物厚度的研究表明，嫦娥六号样本可能包含来自不同来源的物质。详细的地形分析显示，嫦娥六号着陆区主要覆盖着当地月海物质，这些物质是从附近一个直径约51米的无名撞击坑挖掘出来的，体积占30%-35%。