CURRENT KNOWLEDGE OF LUNAR IMPACT FLUX Impact craters are themost ubiquitous landforms on terrestrial planetary surfaces,recording crucial information about planetary evolution.Due to its minimal weathering rates,theM...CURRENT KNOWLEDGE OF LUNAR IMPACT FLUX Impact craters are themost ubiquitous landforms on terrestrial planetary surfaces,recording crucial information about planetary evolution.Due to its minimal weathering rates,theMoon preserves themost complete impact record,serving as the primary reference for reconstructing the impact history in the solar system.1 Impact craters formed by extralunar impactors(i.e.,primaries)since the emplacement of a geological unit constitute the production population,and their size-frequency distribution(SFD)can be mathematically described by the production function(PF).1 In combination with crater spatial densities,the radiometric ages of samples returned from the Moon provide a baseline to construct the lunar impact flux,which is termed the crater chronology function(CF).展开更多
基金supported by the National Natural Science Foundation of China(42241108,42273040,42473049,42402232,and 62227901)the Postdoctoral Fellowship Program of CPSF(grant GZB20240881)the B-type Strategic Priority Program of the Chinese Academy of Sciences(grant XDB41000000).
文摘CURRENT KNOWLEDGE OF LUNAR IMPACT FLUX Impact craters are themost ubiquitous landforms on terrestrial planetary surfaces,recording crucial information about planetary evolution.Due to its minimal weathering rates,theMoon preserves themost complete impact record,serving as the primary reference for reconstructing the impact history in the solar system.1 Impact craters formed by extralunar impactors(i.e.,primaries)since the emplacement of a geological unit constitute the production population,and their size-frequency distribution(SFD)can be mathematically described by the production function(PF).1 In combination with crater spatial densities,the radiometric ages of samples returned from the Moon provide a baseline to construct the lunar impact flux,which is termed the crater chronology function(CF).
