CE-6着陆区表面沉积物的微波热物理性质及其对返回样品分析的潜在意义

IF 4.8 1区地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS

Earth and Planetary Science Letters Pub Date : 2025-03-22 DOI:10.1016/j.epsl.2025.119326

Wenqing Chang , Zhiguo Meng , Yi Xu , Xiaoping Zhang , Roberto Bugiolacchi , Long Xiao , Jinsong Ping , Hongbo Zhang , Yuanzhi Zhang

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引用次数: 0

摘要

阿波罗盆地位于南极艾特肯盆地（SPA）的东北边缘，是嫦娥6号（CE-6）任务的采样区。在这项研究中，我们通过比较CE-2微波辐射计数据与地形、化学元素和月球矿物绘图仪产品相结合得出的亮度温度（TB）和TB差（dTB）图，研究了该地区地表矿床的微波热物理性质。主要结果如下：(1)高dTB异常：在CE-6着陆区附近发现了明显的高dTB异常，其特征是由小新鲜陨石坑估计的FeO和TiO2含量最高；(2)玄武岩火山作用：提出了高dTB异常为岩浆充填晚期的一个新的玄武岩单元，并结合推断年龄和地貌特征，为CE-6着陆区四期岩浆充填玄武岩火山作用提供了新的视角；(3)热物性参数：高dTB异常表明，利用被动微波遥感数据分析返回的CE-6样品对于增强我们对月球表面沉积物的理解具有潜在的重要性。

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Microwave thermophysical properties of surface deposits in CE-6 landing region and its potential implications for analyzing the returned samples

The Apollo basin, situated on the northeastern edge of the South Pole-Aitken (SPA) basin, is the sampling area for the Chang'e -6 (CE-6) mission. In this study, we investigated the microwave thermophysical properties of surface deposits in the region by comparing brightness temperature (TB) and TB difference (dTB) maps derived from CE-2 Microwave Radiometer data combined with topography, chemical elements, and Moon Mineralogy Mapper products. The main results are as follows. (1) High dTB anomaly: A significant high dTB anomaly is identified near the CE-6 landing region, characterized by the highest FeO and TiO₂ contents estimated from the small-fresh craters; (2) Basaltic Volcanism: High dTB anomaly is proposed as a new basaltic unit in late stage of mare infill, and, by combining derived ages and geomorphology, we provide a new perspective on the basaltic volcanism with four episodes of magma infill in the CE-6 landing region; (3) Thermophysical Parameters: The high dTB anomaly indicates the potential importance of analyzing the returned CE-6 samples to enhance our understanding of the Moon's surface deposits using the passive microwave remote sensing data.

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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.