嫦娥六号月球样品最新研究揭示“广寒宫”温度密码

Core Insights - The latest research from China's Chang'e 6 lunar samples reveals that the lunar mantle on the far side of the moon is colder compared to the near side, contributing to the understanding of the moon's "bipolarity" phenomenon [1][4]. Group 1: Lunar Bipolarity - The research identifies the differences between the moon's near and far sides as a "bipolarity" phenomenon, which is crucial for exploring the moon's mysteries and may be linked to its formation and evolutionary history [2]. - Significant differences exist in topography, elemental distribution, and rock characteristics between the near and far sides, with the near side being flatter and having more basaltic plains, while the far side is rugged with fewer maria [2][3]. Group 2: Importance of Lunar Mantle - The sampling area for the Chang'e 6 mission, the South Pole-Aitken Basin, is recognized as the largest and deepest impact basin on the moon, potentially containing deep lunar materials [3]. - The lunar mantle, located beneath the crust, is the largest component of the moon and is critical for understanding its volcanic history and evolution [3]. Group 3: Research Methodology and Findings - The research team employed multiple independent methods to confirm that the crystallization temperature of the basalt samples from the Chang'e 6 mission is lower than that of samples from the near side, such as those from Chang'e 5 [4]. - The study constructed a robust evidence chain using petrology and geochemistry to explain the temperature differences in the lunar mantle between the near and far sides, suggesting that radioactive element distribution may play a role [4].