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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
Geological characteristics of China's Tianwen-1 landing site at Utopia Planitia, Mars

文献类型：期刊论文

作者Wu, Xing5; Liu, Yang4,5; Zhang, Chaolin5; Wu, Yuchun5; Zhang, Feng5; Du, Jun5; Liu, Zhenghao5; Xing, Yan3; Xu, Rui1; He, Zhiping1
刊名ICARUS
出版日期2021-12-01
卷号370页码:16
ISSN号0019-1035
关键词Tianwen-1 Landing site Utopia Planitia Mars
DOI10.1016/j.icarus.2021.114657
英文摘要China's first Mars mission Tianwen-1 successfully touched down the surface of the southern Utopia Planitia on 15th May 2021. In this study we investigate the geological characteristics of the target landing site (Site 1) and a backup landing site (Site 2) on Utopia Planitia for Tianwen-1 Mission. Site 1 is located in a topographic low and generally flat area to the southern Utopia basin, while Site 2 is located in the Utopia-Elysium transition zone. Several geological features indicative of the presence of a large reservoir of volatiles are identified and mapped in detail for both landing sites, including pitted cones, giant polygons, rampart and pancake craters. The volcanismrelated morphologies, e.g., lava flows, lahars, and dikes, are also mapped for Site 2. The compositional analysis reveals little exposures of hydrous materials due to dust cover and/or lacking of data coverage over the regions. Crater counting analysis showed that the Site 1 has an absolute model age of similar to 3.68 Ga and similar to 3.45 Ga when including and excluding ghost craters, respectively. The absolute model age of Site 2 is similar to 3.34 Ga. Finally, the evolutionary history of the Utopia Planitia is discussed, and the related scientific hypotheses to be tested for the in situ exploration are suggested. Our study provides a framework for the Tianwen-1 in situ exploration, which will impose important constraints on the nature and evolution history of the northern lowlands.
WOS关键词ORBITER LASER ALTIMETER ; LAYERED EJECTA CRATERS ; IMPACT CRATERS ; NORTHERN LOWLANDS ; MUD VOLCANISM ; ELYSIUM ; TOPOGRAPHY ; MORPHOLOGY ; CRISM ; EVOLUTION
资助项目pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA)[D020102] ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA)[D020101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; National Natural Science Foundation of China[42072337] ; National Key Research and Development project[2019YFE0123300] ; Beijing Municipal Science and Technology Commission[Z191100004319001]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000701351400005
资助机构pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development project ; National Key Research and Development project ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development project ; National Key Research and Development project ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development project ; National Key Research and Development project ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; pre-research project on Civil Aerospace Technologies - China National Space Administration (CNSA) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development project ; National Key Research and Development project ; Beijing Municipal Science and Technology Commission ; Beijing Municipal Science and Technology Commission
源URL[http://ir.iggcas.ac.cn/handle/132A11/102731]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Liu, Yang
作者单位1.Chinese Acad Sci, Shanghai Inst Tech Phys, Key Lab Space Act Optoelect Technol, Shanghai 200083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
3.Beijing Inst Control Engn, Beijing 100094, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China
5.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Xing,Liu, Yang,Zhang, Chaolin,et al. Geological characteristics of China's Tianwen-1 landing site at Utopia Planitia, Mars[J]. ICARUS,2021,370:16.
APA Wu, Xing.,Liu, Yang.,Zhang, Chaolin.,Wu, Yuchun.,Zhang, Feng.,...&Zou, Yongliao.(2021).Geological characteristics of China's Tianwen-1 landing site at Utopia Planitia, Mars.ICARUS,370,16.
MLA Wu, Xing,et al."Geological characteristics of China's Tianwen-1 landing site at Utopia Planitia, Mars".ICARUS 370(2021):16.

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来源：地质与地球物理研究所

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