Lunar deep materials observed by Chang’e-4 rover

1,2Sheng Gou,1,2,3 Kaichang Di,1,3Zongyu Yue,1Zhaoqin Liu,4Zhiping He,4Rui Xu,5Honglei Lin,1,2Bin Liu,1Man Peng,1Wenhui Wan,1Yexin Wang,6Jianzhong Liu
Earth and Planetary Science Letters 528, 115829 Link to Article []
1State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
2State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Macau, China
3CAS Center for Excellence in Comparative Planetology, Hefei 230026, China
4Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics, Chinese Academy of Science, Shanghai 200083, China
5Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
6Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Copyright Elsevier

China’s Chang’e-4 spacecraft achieved the first ever soft-landing within the South Pole-Aitken (SPA) basin on the farside of the Moon. The Chang’e-4 rover, named Yutu-2, made in-situ spectral observations on lunar regolith and a rock fragment at 11 locations during a nominal three-month mission period. The lunar regolith has a relative high olivine/pyroxene ratio, with the pyroxene being chiefly Mg-rich Low-Ca pyroxene (LCP). The rock fragment has a similar Mg-rich composition to that of the regolith. According to the surrounding topographic and geologic context, though originating from the lower base of a differentiated melt pool cannot be excluded here, the rover observed regolith and rock fragment are very likely to be lunar mantle materials excavated from nearby Finsen crater.


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