The Chang’E‐5 (CE‐5) mission returned a total of 1731 g of lunar regolith from the northern Oceanus Procellarum (NOP). Despite that the CE‐5 landing site is covered by Eratosthenian‐aged mare basalts, non‐mare lithologies might also have been collected owing to the lateral mixing introduced by nearby craters. Here we employed FeO and thorium abundance data obtained by the Lunar Prospector Gamma Ray Spectrometer to investigate the chemical composition of the NOP region. Four major compositional groups (feldspathic highland materials, Imbrium basin ejecta, Aristarchus ejecta, and mare basalts) and several subgroups have been identified. Their corresponding geographical locations were constrained using an interactive scatter‐plot tool in ENVI® software. We also determined the first‐order mixing trends occurring within the NOP region as well as the CE‐5 landing site. Aristarchus crater may have contributed highly‐evolved materials to the CE‐5 site. Rock fragments derived from Aristarchus ejecta are important for the interpretation of magmatic differentiation and non‐mare volcanism on the Moon. We proposed that thorium enrichments of CE‐5 landing site are due to the geochemical nature of local mare basalts rather than impact mixing. Highland ejecta, along with mare basalts, would expand Apollo and Luna sample collection diversity.

中文翻译：

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'娥5号着陆点的碎屑岩中可能存在的非母岩岩性：来自遥感数据的证据

'娥五号（CE-5）任务从北部大洋洲Procellarum（NOP）返回了总计1731 g的月长石。尽管CE-5着陆点被埃拉斯托森时期的母玄武岩所覆盖，但由于附近火山口的横向混合，非母岩岩性也可能已经被收集。在这里，我们使用了由Lunar Prospector伽马射线光谱仪获得的FeO和th的丰度数据来研究NOP区的化学成分。已经确定了四个主要的成分组（长石质高地物质，盆地盆地喷出物，亚里士多德喷出物和母马玄武岩）和几个亚组。使用ENVI®软件中的交互式散点图工具限制了其相应的地理位置。我们还确定了NOP区域以及CE-5降落地点内发生的一阶混合趋势。Aristarchus火山口可能为CE-5站点贡献了高度发展的材料。源自阿里斯塔丘斯喷出物的岩石碎片对于解释月球上的岩浆分化和非母岩火山作用非常重要。我们提出，CE-5着陆点的th富集是由于当地母马玄武岩的地球化学性质，而不是由于冲击混合造成的。高地喷射物与母马玄武岩一起将扩大阿波罗和露娜的样本收集多样性。我们提出，CE-5着陆点的th富集是由于当地母马玄武岩的地球化学性质，而不是由于冲击混合造成的。高地喷射物与母马玄武岩一起将扩大阿波罗和露娜的样本收集多样性。我们认为，CE-5着陆点的th富集是由于当地母马玄武岩的地球化学性质，而不是由于冲击混合造成的。高地喷射物与母马玄武岩一起将扩大阿波罗和露娜的样本收集多样性。