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摘要: 月球元素含量的反演是了解月球物质成分的分布和月球矿产资源开发利用的依据。通过比较月球样品元素含量与不同粒径样品光谱CF值所建立模型的反演精度,确定10~20μm粒径样品最适用于月表元素含量反演。以Apollo 15登陆点附近为例,利用Diviner热红外数据得到了完整覆盖度和更高分辨率月球 CF值影像,反演了月表Al、Fe、Mn、Mg和Ca元素相对含量。与月球样品实测值进行了对比,均方根误差均小于3,验证了利用红外数据反演月表元素相对含量的可行性,为月表元素含量反演提供了新的思路。Abstract: The major element abundances of the Moon provide the important clues for characterizing the lunar composition and exploring the mineral resources. Inverse models were established based on the linear regression between the chemical composition of luna samples and Christiansen Feature (CF) values in terms of different grain size. The validation of the inverse models indicated that the model with the samples of 10~20μm is the most reliable one for element abundances estimation. The CF value map of the wider coverage and higher spatial resolution at the Apollo 15 landing site was generated on the basis of Diviner data. Moreover, Al, Fe, Mn, Mg and Ca abundances were estimated with inverse models. The results demonstrate the feasibility of element abundances estimation with Diviner data and provide a new idea for quantitative analysis of the lunar surface chemical composition.
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Key words:
- Diviner /
- Chemical Composition /
- Thermal Infrared /
- CF Value /
- Apollo 15 landing site /
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