A lunar time scale from the perspective of the Moon’s dynamic evolution  

作　　者：Dijun GUO Jianzhong LIU James WHEAD Fuqin ZHANG Zongcheng LING Shengbo CHEN Jianping CHEN Xiaozhong DING Jinzhu JI Ziyuan OUYANG 

机构地区：[1]State Key Laboratory of Space Weather,National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China [2]Center for Lunar and Planetary Sciences,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China [3]Department of Earth,Environmental and Planetary Sciences,Brown University,Providence RI 02912,USA [4]Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China [5]Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment,Institute of Space Sciences,Shandong University,Weihai 264209,China [6]College of Geoexploration Science and Technology,Jilin University,Changchun 130026,China [7]School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China [8]Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China [9]School of Resources and Environmental Engineering,Inner Mongolia University of Technology,Hohhot 010051,China [10]Center for Excellence in Comparative Planetology,Chinese Academy of Sciences,Hefei 230026,China

出　　处：《Science China Earth Sciences》2024年第1期234-251,共18页中国科学（地球科学英文版）

基　　金：This work was supported partly by the National Key Research and Development Program of China(Grant No.2022YFF0503100);the B-type Strategic Priority Program of the Chinese Academy of Sciences(Grant No.XDB41000000);the National Natural Science Foundation of China(Grant Nos.41902317,41941002,41773065);the National Science and Technology Infrastructure Work Projects(Grant No.2015FY210500).

摘　　要：A geologic time scale is a chronological system that separates the geological strata of a planetary body into different units in temporal sequence and shows its progressive evolution.The time scale of the Moon was established a half-century ago during the telescopic-early Apollo exploration era,using data with limited spatial coverage and resolution.The past decades have seen a wide array of studies,which have significantly extended our understanding of global lunar geologic evolution.Based on a comprehensive review of lunar evolution with respect to the dynamical changes,we propose two major updates to the current lunar time scale paradigm to include the evolution of both endogenic and exogenic dynamic forces now known to have influenced early lunar history.Firstly,based on the temporal interplay of exogenic and endogenic processes in altering the Moon,we defined three Eon/Eonothem-level units to represent three dynamical evolutionary phases.Secondly,the pre-Nectarian System is redefined and divided as the magma ocean-era Magma-oceanian System and the following Aitkenian System beginning with the South Pole-Aitken basin.The ejecta of this basin,Das Formation,was deposited on the primordial lunar crust as the oldest stratum produced from exogenic processes.The updated lunar time scale,facilitated by the post-Apollo exploration and research advances,provides an integrated framework to depict the evolution of the Moon and has important implications for the geologic study of other terrestrial planets.

关 键 词：The Moon Geologic time scale Evolution history Endogenic process Exogenic process 

分 类 号：P184[天文地球—天文学]