CAS-1 lunar soil simulant
CAS-1 lunar soil simulant
复制标题
CAS-1月壤模拟物
DOI：
10.1016/j.asr.2008.07.006
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发表时间：
2009-02-02
影响因子：
2.6
通讯作者：
Feng Junming
中科院分区：
文献类型：
--
作者：
Zheng Yongchun;Wang Shijie;Feng Junming
月球土壤模拟物是月球风化层的地球化学再现，是月球科学与工程研究的需要。本文介绍了中国科学院为支持中国月球探测计划（2004-2020年）的月球轨道飞行器、软着陆任务和样品返回任务而研制的一种新型月球土壤模拟装置CAS-1。这样的模拟应该与从月球返回的样本相匹配，这些样本都是从月球风化层而不是露头处收集的。从阿波罗14号任务返回的月球土壤样本的平均矿物和化学成分被选择作为CAS-1模拟的模型。阿波罗14号任务降落在弗拉毛罗组。模拟物的源材料为东北长白山晚第四纪火山岩区1600年的低钛玄武岩碎屑。主要矿物为辉石、橄榄石和少量斜长石，模态玻璃约占20-40%。经XRF分析，发现其化学成分与阿波罗14号月球样本14163相似。在冲击磨机中粉碎，得到的中位粒径为85.9 μ m，与阿波罗土壤相似。堆积密度、剪切阻力、复介电常数和反射光谱也与阿波罗14号土壤相似。认为CAS-1是未来探月工程科学研究的理想月球土壤模拟材料。(c) 2008年cospar。Elsevier Ltd.出版。版权所有。
Lunar soil simulant is a geochemical reproduction of lunar regolith, and is needed for lunar science and engineering researches. This paper describes a new lunar soil simulant, CAS-1, prepared by the Chinese Academy of Sciences, to support lunar orbiter, soft-landing mission and sample return missions of China's Lunar Exploration Program, which is scheduled for 2004-2020. Such simulants should match the samples returned from the Moon, all collected from the lunar regolith rather than outcrops. The average mineral and chemical composition of lunar soil sample returned from the Apollo 14 mission, which landed on the Fra Mauro Formation, is chosen as the model for the CAS-1 simulant. Source material for this simulant was a low-Ti basaltic scoria dated at 1600 years from the late Quaternary volcanic area in the Changbai Mountains of northeast China. The main minerals of this rock are pyroxene, olivine, and minor plagioclase, and about 20-40% modal glass. The scoria was analyzed by XRF and found to be chemically similar to Apollo 14 lunar sample 14163. It was crushed in an impact mill with a resulting median particle size 85.9 mu m, similar to Apollo soils. Bulk density, shear resistance, complex permittivity, and reflectance spectra were also similar to Apollo 14 soil. We conclude that CAS-1 is an ideal lunar soil simulant for science and engineering research of future lunar exploration program. (C) 2008 COSPAR. Published by Elsevier Ltd. All rights reserved.