月壤研究显示月球背面月幔有点“冷”

Core Findings - The latest research results from the Chang'e 6 lunar sample indicate that the lunar mantle on the far side of the moon is cooler compared to the near side, contributing to the understanding of the "bipolarity" phenomenon of the moon [1] - The research was a collaborative effort involving the China National Nuclear Corporation, Peking University, and Shandong University, and has been published in the journal Nature Geoscience [1] - The study provides critical scientific data for understanding lunar evolution and the characteristics of the moon's mantle, which is essential for comprehending ancient volcanic activities on the moon [1] Research Methodology - The Chang'e 6 lunar samples were found to be finer and more fragmented compared to those from Chang'e 5, increasing the workload for identifying target minerals [2] - The research team employed multiple analytical techniques to study the basalt samples, including various thermobarometers to calculate the temperature and pressure of basalt formation [2] - The crystallization temperature of the Chang'e 6 basalt samples was determined to be approximately 1100°C, which is about 100°C lower than that of the Chang'e 5 samples from the near side [2] Temperature Analysis - The potential temperature of the lunar mantle on the far side was found to be around 1400°C, which is lower than the 1500°C estimated for the near side [2] - Satellite remote sensing data was used to analyze the surface rock chemical composition, confirming that the potential temperature of the lunar mantle on the far side is approximately 70°C lower than that of the near side, reinforcing the credibility of the research findings [2]