2021-10-08

Significant progress in the study of lunar evolution: magmatism still existed 1.96 billion years ago

By yqqlm yqqlm

The related research paper “age and composition of chang’e-5 young basalt” was published online in the international academic journal Science in the early morning of October 8, Beijing time. This is the first academic achievement published with the chang’e-5 Lunar Sample as the research object. Researcher Liu Dunyi and Professor Alexander nemchin are the co corresponding authors of this paper, and Dr. Che Xiaochao is the first author of this paper

Significant progress in the study of lunar evolution: magmatism still existed 1.96 billion years ago

when the magmatism of the moon stops has always been one of the major scientific issues in the study of the evolution history of the moon. Previous research results on lunar samples have not found that the moon has magmatic activity younger than 2.9 billion years. The sampling location of chang’e-5 mission is designed in the lunar sea basalt area with the youngest lunar surface. A total of 1731g lunar samples were collected through surface sampling and drilling. After being reviewed by the Lunar Sample expert committee, reviewed by the lunar exploration and space engineering center, and reported to the National Space Administration for approval, 31 of the first batch of lunar scientific research samples were distributed to 13 scientific research institutions on July 12 this year. Scientists all over the world are full of hope and hope to obtain younger magmatic event results from the study of Chang’e 5 sample, so as to improve the history of lunar magmatic evolution

the research team used detailed in-situ high-resolution secondary ion mass spectrometry (shrimp) dating data and solid rock and mineral geochemical data to prove that magmatic activity still existed on the moon until 1.96 billion years ago, extending the previously known geological life of the moon by about 1 billion years

at present, scientific research on lunar samples is in progress. The distribution of the second batch of lunar samples is carried out according to procedures, and relevant scientific achievements will be released in time

Significant progress in the study of lunar evolution: magmatism still existed 1.96 billion years ago(1)