我国科学家首次精确测定月球阿波罗盆地形成于41.6亿年前

Core Findings - Chinese scientists have accurately dated the formation of the Apollo basin on the Moon to 4.16 billion years ago, providing crucial evidence for the timing of the Late Heavy Bombardment period [1][2] - The research was published in the international journal Nature Astronomy, highlighting the significance of the findings in understanding lunar geological history [1] Research Details - The Apollo basin, with a diameter of approximately 540 kilometers, is the largest secondary impact structure within the South Pole-Aitken (SPA) basin, closely related to the Late Heavy Bombardment [1] - The research team, led by Chinese Academy of Sciences academician Xu Yigang, discovered three unique rock fragments, sized between 150 to 350 micrometers, in just 3.5 grams of lunar soil [1] - These rock fragments are considered ideal "rock clocks" that record impact events during the formation of the Apollo basin [1][2]