月壳物质成分和结构特征分析：基于月球撞击坑中央峰物质M3高光谱数据的解译

The lunar crust provides the most direct evidence for the origin and evolution of the Moon. Determining the composition and evolution of the lunar crust is critical for us to better understand early planetary evolution and crustal genesis. Synthesizing data from both remote sensing and sample analysis reveals that the lunar crust is compositionally heterogeneous in both horizontal and vertical dimensions. However, previous studies are limited by the under representative lunar sample collection and by previous remote sensing techniques that had relatively low spatial and spectral resolution. Details of lunar crustal structure and evolution still remain contentious. In this study, a global mineralogy survey of impact crater central peaks using the up-to-date dataset (e.g. M3, GRAIL, LRO) will be conducted for five common lunar minerals (Mg-spinel, Olivine, Crystalline Plagioclase, Orthopyroxene and Clinopyroxene) to characterizing the lunar crust and exploring the crustal evolution.

月壳物质成分的研究是探索月壳岩浆演化的重要窗口。 以往基于月球样品和遥感数据的研究表明月壳成分具有多样性，但由于月球样本的有限和遥感数据相对低的分辨率，使对月壳成分分布的结构特征没有统一的认识。本研究利用M3高光谱数据结合GRAIL，LRO等目前最先进的遥感数据，半定量反演全月球撞击坑中央峰的五种常见矿物成分（镁尖晶石，橄榄石，结晶斜长石，斜方辉石和单斜辉石），从而获得月壳矿物成分横向和纵向上的分布特征。继而建立新的基于成分变化的月壳分层结构模型，并探索月球常见矿物成因和月壳岩浆演化历史。