Research on the geological characteristics of shallow layer and regional magma - impact evolution history at the navigation area on Chang'e-4 mission

IF 4.8 1区地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS

Earth and Planetary Science Letters Pub Date : 2025-09-02 DOI:10.1016/j.epsl.2025.119613

Guangliang Zhang , Bin Liu , Shun Dai , Xingguo Zeng , Hongbo Zhang , Xin Ren , Wangli Chen , Jingjing Zhang , Qin Zhou , Dawei Liu , Wei Yan , Renhao Tian , Wenhui Wu

{"title":"Research on the geological characteristics of shallow layer and regional magma - impact evolution history at the navigation area on Chang'e-4 mission","authors":"Guangliang Zhang , Bin Liu , Shun Dai , Xingguo Zeng , Hongbo Zhang , Xin Ren , Wangli Chen , Jingjing Zhang , Qin Zhou , Dawei Liu , Wei Yan , Renhao Tian , Wenhui Wu","doi":"10.1016/j.epsl.2025.119613","DOIUrl":null,"url":null,"abstract":"<div><div>The Chang'e-4 mission lander and the rover landed in the Von Karman impact crater in the South Pole Aitken (SPA) basin on the far side of the moon. Using the optical images and spectral data obtained from 57 exploration points during the 60 lunar months by the Chang'e-4 rover, we have acquired information on the shallow structure of the lunar soil and the composition of the lunar surface materials. The results show that the main demonstration types in the landing area are basalt, weathered deposits, and highland rocks. The lunar soil layer in the landing area can be divided into two categories in terms of surface morphology and deep thickness, namely, thin layer lunar soil with light gray, less gravel, and less alteration, and thick layer lunar soil with dark color, more gravel, and more alteration. It was found that they alternate and appear as strip like structures, extending in a northeast southwest direction. At the same time, research on spectral composition data shows that its composition is uniform, and the composition of the landing zone is consistent with that of the Finsen impact crater, but it contains more olivine and glass components. The shallow radar research results show that the deep part of the landing area is divided into four layers: weathered accumulation layer, gravel layer, coarse gravel layer, basalt basement layer, and bedrock layer. Based on the above results, we found that the landing zone can be divided into the following stages after the formation of the Von Kármán impact crater: the Imbrian basalt filling period, during which the basalt bedrock at the bottom of the Von Kármán impact crater was formed; Next is the Eratosthenian impact modification period, during which large impact craters were formed around it, and the Von Kármán impact crater was modified. The ejecta from nearby impact craters contributed to the accumulation and weathering products of the landmass to a certain extent.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"670 ","pages":"Article 119613"},"PeriodicalIF":4.8000,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Earth and Planetary Science Letters","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0012821X2500411X","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}

引用次数: 0

Abstract

The Chang'e-4 mission lander and the rover landed in the Von Karman impact crater in the South Pole Aitken (SPA) basin on the far side of the moon. Using the optical images and spectral data obtained from 57 exploration points during the 60 lunar months by the Chang'e-4 rover, we have acquired information on the shallow structure of the lunar soil and the composition of the lunar surface materials. The results show that the main demonstration types in the landing area are basalt, weathered deposits, and highland rocks. The lunar soil layer in the landing area can be divided into two categories in terms of surface morphology and deep thickness, namely, thin layer lunar soil with light gray, less gravel, and less alteration, and thick layer lunar soil with dark color, more gravel, and more alteration. It was found that they alternate and appear as strip like structures, extending in a northeast southwest direction. At the same time, research on spectral composition data shows that its composition is uniform, and the composition of the landing zone is consistent with that of the Finsen impact crater, but it contains more olivine and glass components. The shallow radar research results show that the deep part of the landing area is divided into four layers: weathered accumulation layer, gravel layer, coarse gravel layer, basalt basement layer, and bedrock layer. Based on the above results, we found that the landing zone can be divided into the following stages after the formation of the Von Kármán impact crater: the Imbrian basalt filling period, during which the basalt bedrock at the bottom of the Von Kármán impact crater was formed; Next is the Eratosthenian impact modification period, during which large impact craters were formed around it, and the Von Kármán impact crater was modified. The ejecta from nearby impact craters contributed to the accumulation and weathering products of the landmass to a certain extent.

查看原文本刊更多论文

“嫦娥四号”导航区浅层地质特征及区域岩浆冲击演化史研究

嫦娥四号着陆器和月球车在月球背面南极艾特肯盆地的冯·卡门陨石坑着陆。利用“嫦娥四号”月球车在60个月期间从57个探测点获得的光学图像和光谱数据，我们获得了月球土壤浅层结构和月球表面物质组成的信息。结果表明，着陆区主要显示类型为玄武岩、风化矿床和高地岩。着陆区月壤层从表面形态和深度厚度上可分为两类，即薄层月壤浅灰色，砾石较少，蚀变较少；厚层月壤颜色较深，砾石较多，蚀变较多。发现它们交替出现，呈条状结构，向东北-西南方向延伸。同时，对光谱成分数据的研究表明，其成分较为均匀，着陆区的成分与Finsen撞击坑的成分一致，但含有较多的橄榄石和玻璃成分。浅层雷达研究结果表明，着陆区深部分为风化堆积层、砾石层、粗砾石层、玄武岩基底层和基岩层4层。综合以上结果，我们发现Von Kármán撞击坑形成后，着陆带可划分为以下几个阶段：隐brian玄武岩充填期，在此期间Von Kármán撞击坑底部形成玄武岩基岩；接下来是埃拉托色尼撞击修正期，在此期间其周围形成了大型撞击坑，Von Kármán撞击坑被修正。附近陨石坑的喷出物在一定程度上促成了陆块的堆积和风化产物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Earth and Planetary Science Letters 地学-地球化学与地球物理

CiteScore

10.30

自引率

5.70%

发文量

475

审稿时长

2.8 months

期刊介绍： Earth and Planetary Science Letters (EPSL) is a leading journal for researchers across the entire Earth and planetary sciences community. It publishes concise, exciting, high-impact articles ("Letters") of broad interest. Its focus is on physical and chemical processes, the evolution and general properties of the Earth and planets - from their deep interiors to their atmospheres. EPSL also includes a Frontiers section, featuring invited high-profile synthesis articles by leading experts on timely topics to bring cutting-edge research to the wider community.