Core Insights - The recent research conducted by Chinese scientific teams utilizing samples from the Chang'e 6 mission has unveiled significant findings about the Moon's far side, challenging previous understandings of its geological history and composition [2][10]. Group 1: Research Findings - Four groundbreaking research results were published in the journal "Nature," revealing insights into lunar magma activity, ancient magnetic fields, water content in the lunar mantle, and mantle evolution characteristics [2]. - The lunar far side exhibits stark differences from the near side, characterized by a thicker crust and a lack of lunar seas, which has led to various theories regarding its formation [3][4]. - The Chang'e 6 mission collected samples from the South Pole-Aitken Basin, the largest and oldest impact site on the Moon, providing a unique opportunity to study the differences in material composition between the Moon's near and far sides [5]. Group 2: Water Content and Magma Activity - The research indicates that the lunar mantle on the far side is extremely dry, with water content measured at only 1 to 1.5 micrograms per gram, the lowest reported value, suggesting a significant difference from the near side [8][9]. - The study of basaltic rock fragments from the Chang'e 6 samples revealed volcanic activity on the far side dating back 2.8 billion years, with magma originating from a depleted source rich in potassium, rare earth elements, and phosphorus [9]. Group 3: Magnetic Field Insights - Analysis of the samples has provided information about the Moon's magnetic field approximately 2.8 billion years ago, indicating a rebound in magnetic activity contrary to previous beliefs that it had been in a low-energy state since around 3.1 billion years ago [12]. - The findings suggest that the Moon once had a magnetic field generator similar to Earth's, which may have undergone changes in its energy sources or driving mechanisms [11][12].
中国科学院发布嫦娥六号月球样品系列最新研究成果 揭秘月球背面（新知）
Ren Min Ri Bao·2025-07-20 21:41