Lunar samples record an impact 4.2 billion years ago that may have formed the Serenitatis Basin
Lunar samples record an impact 4.2 billion years ago that may have formed the Serenitatis Basin
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月球样本记录了 42 亿年前的一次撞击,可能形成了塞伦尼蒂蒂斯盆地
DOI:
10.1038/s43247-021-00181-z
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发表时间:
2021
影响因子:
7.9
通讯作者:
Cernok A
中科院分区:
文献类型:
--
作者:
Cernok A
Impact cratering on the Moon and the derived size-frequency distribution functions of lunar impact craters are used to determine the ages of unsampled planetary surfaces across the Solar System. Radiometric dating of lunar samples provides an absolute age baseline, however, crater-chronology functions for the Moon remain poorly constrained for ages beyond 3.9 billion years. Here we present U–Pb geochronology of phosphate minerals within shocked lunar norites of a boulder from the Apollo 17 Station 8. These minerals record an older impact event around 4.2 billion years ago, and a younger disturbance at around 0.5 billion years ago. Based on nanoscale observations using atom probe tomography, lunar cratering records, and impact simulations, we ascribe the older event to the formation of the large Serenitatis Basin and the younger possibly to that of the Dawes crater. This suggests the Serenitatis Basin formed unrelated to or in the early stages of a protracted Late Heavy Bombardment.
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DOI:
--
发表时间:
2017
期刊:
影响因子:
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作者:
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通讯作者:
J. Bellucci
DOI:
--
发表时间:
1975
期刊:
影响因子:
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