| 月球东海盆地的矿物光谱特征及遥感探测 |
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| 引用本文： | 孙灵芝,凌宗成,刘建忠.月球东海盆地的矿物光谱特征及遥感探测[J].地学前缘,2014,21(6):188-203. |
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| 作者姓名： | 孙灵芝 凌宗成 刘建忠 |
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| 作者单位： | 1. 山东大学 空间科学研究院；山东省光学天文与日地空间环境重点实验室，山东 威海 264209 2. 中国科学院 月球与深空探测重点实验室，北京 100012 3. 中国科学院 地球化学研究所，贵州 贵阳 550002 |
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| 基金项目： | 国家自然科学基金项目(11003012,U1231103,41373068,41473065);山东省自然科学基金项目(ZR2011AQ001);中国科学院月球与深空探测重点实验室开放基金项目;山东大学自主创新基金项目(2013ZRQP004);山东大学(威海)优秀研究生科研创新基金项目(yjs13026) |
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| 摘 要： | 东海盆地是月球上最年轻的大型撞击盆地之一，其地形地貌和矿物与岩石类型分布将有助于我们深入理解月球撞击盆地形成过程和地质演化历史。LOLA高程数据揭示东海盆地为保存完好的多环撞击盆地。基于月球矿物绘图仪（M3）反射率数据，在东海盆地发现了尖晶石、辉石、结晶斜长石、橄榄石等矿物，采用修正高斯模型（MGM）进行混合矿物光谱分解获取了矿物端员，利用光谱角分类方法（SAM）作出了Maunder 撞击坑的主要矿物分布图。发现的纯结晶斜长石矿物与最近其他月球探测（如Kaguya)相吻合，为月球岩浆洋模型提供了新约束条件。在Lowell撞击坑中央峰发现尖晶石分布，并利用多光谱成像仪（MI）数据进行了验证；利用MGM方法，在Maunder建造上发现结晶斜长石与尖晶石的混合矿物，我们通过分析认为东海盆地的尖晶石在外卢克山脉上可能有更广泛的分布。
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| 关 键 词： | 东海盆地 尖晶石 结晶斜长石 修正高斯模型 月球矿物绘图仪 |
| 收稿时间： | 2014-07-11 |
The spectral characteristics and remote detection of minerals in lunar Orientale Basin |
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| SUN Ling-Zhi,LING Zong-Cheng,LIU Jian-Zhong.The spectral characteristics and remote detection of minerals in lunar Orientale Basin[J].Earth Science Frontiers,2014,21(6):188-203. |
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| Authors: | SUN Ling-Zhi LING Zong-Cheng LIU Jian-Zhong |
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| Abstract: | Orientale Basin is one of the youngest lunar impact basins. The topography and minerals distribution of Orientale Basin will provide information on the basin forming process and lunar evolution history. As shown by data from Lunar Orbiter Laser Altimeter (LOLA), Orientale Basin is a well preserved multi ring impact basin. We discovered various mineral types like spinel, crystalline plagioclase, pyroxene and olivine in Orientale Basin using hyperspectral data from Moon Mineralogy Mapper (M3). The spectra of mineral mixtures are deconvoluted by Modified Gaussian Model(MGM).The minerals distribution of Maunder Crater are mapped by the method of Spectral Angle Mapper (SAM). Our findings of pure crystalline plagioclase are consistent with the recent lunar missions (e.g., Kaguya) and can provide new constraint for the lunar magma ocean hypothesis. The spinel was found in the central peaks of Lowell Crater with the aid of Multi band Imager (MI) data to validate the discovery. The mineral mixture of spinel and crystalline plagioclase was also found in Maunder Crater, which suggests that spinel might have a broader distribution in the Outer Rook Ring of Orientale Basin. |
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| Keywords: | Orientale Basin spinel crystalline plagioclase Modified Gaussian Model Moon Mineralogy Mapper |
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