Purple Mountain, south of the ancient lunar sample study was important progress

  Original title: Purple Mountain, south of the ancient study of the lunar samples were obtained important progress "Chang-e V" landing zone may occur many times a volcanic eruption reporter learned from the Purple Mountain Observatory, Chinese Academy of Sciences, the station and its planetary researcher Xu Weibiao Nanjing chemical joint research team Institute of Geology and Palaeontology, has made important progress in the study of Chang-e V first lunar samples, the results show that Chang E on the fifth landing area history may have been many volcanic eruptions occur.

  Purple Mountain Observatory is one of 13 research institutes domestic first to obtain samples of lunar research, Xu Weibiao approved as a responsible use of two lunar basalt sample.

Team using high-resolution microscopic CT, scanning electron microscopy, electron probe, a sample of which (No. CE5C0000YJYX065) conducted a detailed study of mineralogy and three-dimensional tomographic imaging.

The results show that the sample belongs to the moon volcanic basalt, with fine – grained structure views diabase, olivine phenocrysts small amount distributed in the matrix pyroxene, plagioclase, ilmenite and other minerals consisting of the main components chemical composition and evolution of the tendency of mineral pyroxene, and high titanium basalt type returned by the US Apollo program and the Soviet Luna program highly consistent. The sample contains a high content of ilmenite, the abundance of close to the maximum value Awa Luo Yuehai basalt, and phosphate-rich mineral, is a relatively rare high-Ti mare basalts enriched in rare earth elements, suggesting that Chang E V the landing zone history may have occurred many times volcanic eruptions, it will be expected to interpret different temporal and spatial distribution of the fine material composition, energy source volcanic magma and volcanic activity of the moon late may mantle source region. (Tsai Shu Wen).