| 基于辐射传输模型的月表铁镁质矿物定量反演:以嫦娥三号着陆区为例 |
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| 引用本文： | 孙灵芝,凌宗成,张江,李勃,郭弟均.基于辐射传输模型的月表铁镁质矿物定量反演:以嫦娥三号着陆区为例[J].岩石学报,2016,32(1):43-52. |
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| 作者姓名： | 孙灵芝 凌宗成 张江 李勃 郭弟均 |
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| 作者单位： | 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, 威海 264209,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, 威海 264209;中国科学院月球与深空探测重点实验室, 北京 100012,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, 威海 264209,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, 威海 264209,中国科学院地球化学研究所, 贵阳 550002 |
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| 基金项目： | 本文受国家自然科学基金项目(41490634、41473065、U1231103、41373068)、中国科学院重点部署项目(KGZD-EW-603)、中国科学院月球与深空探测重点实验室开放基金项目和山东大学(威海)青年学者未来计划(2015WHWLJH14)联合资助. |
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| 摘 要： | 我国嫦娥三号着陆于雨海北部的年轻玄武岩熔岩平原上,该区域的物质成分和矿物组成对于理解月球年轻的火山活动具有重要研究价值。月球全球勘探者(Lunar Prospector,LP)探测的元素数据揭示着陆区附近岩石类型主要为高铁中钛玄武岩(19.5%FeO;5.2%TiO_2)。本研究利用月球矿物绘图仪(Moon Mineralogy Mapper,M~3)获取的嫦娥三号着陆区附近的新鲜撞击坑高光谱数据,采用Hapke辐射传输模型和修正高斯模型(MGM)联合分析,对其年轻月海玄武岩铁镁质矿物进行了定量反演。研究表明该区域玄武岩中矿物组成以单斜辉石矿物为主,存在较高比例的橄榄石。基于光谱库匹配方法和MGM优化分析,我们反演出单斜辉石,斜方辉石,橄榄石和钛铁矿四种矿物的相对体积比为57.6:18.0:15.3:9.1,这一研究结果有待于与嫦娥三号玉兔号月球车上搭栽的红外成像光谱仪数据进行比对,以期从遥感和就位探测两个角度获得对于该地区矿物和岩石类型的全面认识。
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| 关 键 词： | 嫦娥三号 月球矿物 月球矿物绘图仪(M3) Hapke辐射传输模型 修正高斯模型 |
| 收稿时间： | 2015/6/16 0:00:00 |
| 修稿时间： | 2015/9/28 0:00:00 |
Radiative transfer modeling of lunar mafic minerals: A case study in Chang'E-3 landing region |
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| SUN LingZhi,LING ZongCheng,ZHANG Jiang,LI Bo and GUO DiJun.Radiative transfer modeling of lunar mafic minerals: A case study in Chang'E-3 landing region[J].Acta Petrologica Sinica,2016,32(1):43-52. |
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| Authors: | SUN LingZhi LING ZongCheng ZHANG Jiang LI Bo and GUO DiJun |
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| Institution: | Institute of Space Sciences, Shandong University, Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Weihai 264209, China,Institute of Space Sciences, Shandong University, Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Weihai 264209, China;Key Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing 100012, China,Institute of Space Sciences, Shandong University, Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Weihai 264209, China,Institute of Space Sciences, Shandong University, Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Weihai 264209, China and Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China |
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| Abstract: | Chang'E-3 (CE-3) landed on the young lava plain of northern Imbrium, whose compositional and mineralogical information are crucial to understand the lunar young volcanisms. According to the elemental distributions from Lunar Prospector (LP), i.e., ~19.5% FeO and ~5.2% TiO2, the rock type of Chang'E-3 landing site could be assigned as high-FeO and medium TiO2 mare basalts. We combined Hapke radiative transfer model and Modified Gaussian Model (MGM) to analyze the spectra of fresh craters from Moon Mineralogy Mapper (M3), and quantify the mafic minerals proportions nearby the landing region of Chang'E-3. The young lunar basalts are found to be composed of abundant clinopyroxene and relatively high content of olivine. The ratio of clinopyroxene, orthopyroxene, olivine and ilmenite is determined as 57.6:18.0:15.3:9.1 based on the correlated analysis of spectral library matching and MGM refinements. Our results would be compared with the in-situ mineralogical measurements by Visible and Near-infrared Imaging spectrometer aboard Chang'E-3 Yutu rover. |
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| Keywords: | Chang'E-3 Lunar mineralogy Moon Mineralogy Mapper (M3) Hapke radiative transfer model Modified Gaussian Model |
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