嫦娥一号干涉成像光谱仪数据再校正与全月铁钛元素反演

发布时间：2018-01-10 04:27

本文关键词：嫦娥一号干涉成像光谱仪数据再校正与全月铁钛元素反演　出处：《岩石学报》2016年01期 　论文类型：期刊论文

【摘要】：月球表面的元素和物质成分分布是理解月球成岩与地质演化历史的重要线索。嫦娥一号干涉成像光谱仪(IIM)是我国首台月球探测成像光谱仪器,其获得的大量月球高光谱数据已成为我国未来探测月球成分与地质演化研究的宝贵基础数据。本文利用探月工程地面应用系统发布的IIM B版本2C级数据,开发出一套数据再定标流程,获得了较为可靠的月表相对反射率数据。我们在新校正数据的基础上开展月球表面FeO、TiO_2的反演建模,获得了全月FeO和TiO_2分布图,这些图件是进行月球地质填图的基础。校正数据反演的FeO和TiO_2分布与前人对Clementine UVVIS数据的反演结果相近,表明干涉成像光谱仪数据具有较大的应用潜力。高地的低铁岩石成分(一般小于8%)佐证了月球月壳形成的过程中的岩浆洋分异假说,而月海玄武岩的TiO_2成分变化范围较大(0~13%)则表明月海玄武岩来源于不同的月幔源区。根据嫦娥一号干涉成像光谱仪全月FeO分布图,可将月球表面物质类型总体划分为高地斜长岩和月海玄武岩,而根据TiO_2分布可以进一步将月海玄武岩划分为5种不同钛含量的玄武岩岩石类型。FeO和TiO_2在全月范围内的分布表明Apollo和Luna返回的月球样品不能够代表全月范围内的矿物成分多样性,月球岩浆演化历史比前人认为的要复杂。未来月球样品返回任务(如嫦娥五号)如能赴这些特殊地区进行取样,将很有可能返回重要的月球科学研究发现和成果。
[Abstract]:The distribution of elements and materials on the lunar surface is an important clue to understand the history of lunar diagenesis and geological evolution. Chang 'e-1 interferometric imaging spectrometer (IIMM) is the first imaging spectrometer for lunar exploration in China. The large amount of lunar hyperspectral data has become a valuable basic data for the future study of lunar composition and geological evolution in China. This paper makes use of the IIM published by the ground application system of lunar exploration project. B version 2C level data. A data recalibration process has been developed, and reliable relative reflectance data have been obtained. Based on the new correction data, the inversion modeling of Feo / TiO2 on the lunar surface has been carried out. The distribution maps of FeO and TiO_2 were obtained. These maps are the basis of lunar geological mapping. The FeO and TiO_2 distributions of corrected data inversion are similar to those of previous inversion of Clementine UVVIS data. The data of interferometric imaging spectrometer have great application potential. The composition of low-iron rocks in the highlands (generally less than 8) supports the hypothesis of magmatic oceanic differentiation during the formation of lunar crust. The variation range of TiO_2 composition of Yuehai basalt is larger than that of Yuehai basalt, which indicates that the Yuehai basalt originated from different source regions of the moon mantle. According to the FeO distribution map of Chang 'e-1 interferometric imaging spectrometer. The material types of lunar surface can be divided into highland plagioclase and lunar basalt. According to the TiO_2 distribution, the basalt types of Yuehai can be further divided into five basalt types with different titanium content. Feo and TiO_2 distribution in the whole month shows that Apollo and Lun can be divided into five types of basalts with different titanium content. A the returned lunar samples do not represent the diversity of mineral composition throughout the month. The history of magma evolution on the moon is more complicated than previously thought. Future lunar sample return missions (such as Chang'e 5) could be taken to these special areas. It is likely to return to important lunar scientific discoveries and results.
【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;中国科学院月球与深空探测重点实验室;中国科学院地球化学研究所;
【基金】：国家自然科学基金项目(41490634、41473065、U1231103、41373068) 科技部基础性工作专项(2015FY210500) 山东省自然科学基金项目(JQ201511、ZR2015DQ001) 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山东大学(威海)青年学者未来计划(2015WHWLJH14)联合资助
【分类号】：P184.5
【正文快照】： 1 月球表面物质成分分布是月球形成的初始物质及其I#174;后热历史和地质作用il程的直接记录(Heiken aZ.,1991;欧阳自远,2005)。紫外可见近红外反射光谱(0.3~ 2.6|xm)作为研究月球月表元素、矿物和岩石成分的主要手段之-,在月球删和样品实验室研究中已获得广泛}0(Lucey d/.,湖

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