Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool

作     者：Honglei Lin Zhiping He Wei Yang Yangting Lin Rui Xu Chi Zhang Meng-Hua Zhu Rui Chang Jinhai Zhang Chunlai Li Hongyu Lin Yang Liu Sheng Gou Yong Wei Sen Hu Changbin Xue Jianfeng Yang Jie Zhong Xiaohui Fu Weixing Wan Yongliao Zou Honglei Lin;Zhiping He;Wei Yang;Yangting Lin;Rui Xu;Chi Zhang;Meng-Hua Zhu;Rui Chang;Jinhai Zhang;Chunlai Li;Hongyu Lin;Yang Liu;Sheng Gou;Yong Wei;Sen Hu;Changbin Xue;Jianfeng Yang;Jie Zhong;Xiaohui Fu;Weixing Wan;Yongliao Zou

作者机构：Key Laboratory of Earth and Planetary PhysicsInstitute of Geology and Geophysics Chinese Academy of Sciences Key Laboratory of Space Active Opto-Electronics Technology Shanghai Institute of Technical Physics Chinese Academy of Sciences State Key Laboratory of Lunar and Planetary SciencesMacau University of Science and Technology Beijing Institute of Space Mechanics and Electricity State Key Laboratory of Space Weather National Space Science CenterChinese Academy of Sciences State Key Laboratory of Remote Sensing Science Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences Key Laboratory of Electronics and Information Technology for Space SystemNational Space Science Center Chinese Academy of Sciences Xi'an Institute of Optics and Precision MechanicsChinese Academy of Sciences Institute of Optics and Electronics Chinese Academy of Sciences Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space SciencesShandong University 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2020年第7卷第5期

页      面：913-920页

核心收录：

学科分类：07[理学] 08[工学] 070401[理学-天体物理] 082503[工学-航空宇航制造工程] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the Key Research Program of Frontier Sciences Chinese Academy of Sciences (QYZDJSSW-DQC001) the National Natural Science Foundation of China (41902318,41490631,41525016,11941001) the Beijing Municipal Science and Technology Commission(Z181100002918003) 

主　　题：impact basin lunar interior composition visible and near-infrared spectra lunar rover Yutu-2 Chang’E-4 mission 

摘      要：Chang’E-4 landed in the South Pole-Aitken (SPA) basin,providing a unique chance to probe the composition of the lunar *** landing site is located on ejecta strips in Von Karman crater that possibly originate from the neighboring Finsen crater.A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission *** situ spectra of the regolith have peak band positions at 1and 2μm,similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper,which confirms that the regolith’s composition of the landing area is mostly similar to that of Finsen *** rock spectrum shows similar band peak positions,but stronger absorptions,suggesting relatively fresh *** rock may consist of 38.1±5.4%low-Ca pyroxene,13.9±5.1%olivine and 48.0±3.1%plagioclase,referred to as *** plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle,but representative of the lunar lower ***,the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle *** scenario is consistent with fast-cooling thermal conditions of a shallow melt pool,indicated by the fine to medium-sized texture (3 mm) of the rock and the SPA-impact melting model[Icarus2012;220:730-43].