1943 is an extraordinary year for Yanshan Garden. Besides Chen Yinque's teaching in Guangxi University, he also made great discoveries in the Central Institute of Geology and the Institute of Physics.
1in late may, 943, Li Siguang, the laboratory of metallurgical museum jointly organized by the central institute of geology, the institute of physics and the national Guangxi university, just walked to the gate of Yanshan garden. Two young people rushed out of the laboratory, holding laboratory sheets and film negatives, and shouted at Li Siguang: "Director, great discovery! It's uranium! It's uranium! " Li Siguang immediately took the test sheet and negative to check the data, with a look of surprise and excitement on his face.
1943 After the Spring Festival, at the invitation of Pinggui Mining Bureau (1938 was established in Xiwan Town, Fuzhong County, Guangxi), the Central Institute of Geology sent Nan Yuezong, a geological researcher, to Pinggui Mining Bureau to explore tin resources. Pinggui Mining Bureau mainly produces tin, tungsten, coal and other minerals, which are mainly distributed in Fuzhong, Hexian (now Hezhou City), Pingle, Gongcheng and other places with a long history of development. After nearly three months of exploration and investigation, Nanyue Sect arrived at Niumiaozi Mine of Pinggui Mining Bureau in Fuzhong County. When Nanyue Zong went to Huangqiangping, Honghua Town to investigate tin mines, he saw many bright yellow powdery objects in an abandoned tin-tungsten mine that had been mined. Out of professional sensitivity, I collected some, took them back to the laboratory of Yanshan Garden Metallurgical Museum, and gave them to my colleague Wu (later a geomechanics expert) for testing, hoping to see if there were any rare elements. The two of them have just listened to the principles and methods of microchemistry by geologist Professor Meng Xianmin, and have also done a series of demonstration experiments. So Nan Yuezong and Wu are now learning and doing a micro-chemical analysis of the yellow powder brought back by Nan Yuezong. Under the microscope, they were pleasantly surprised to see that the object presented a mysterious and perfect tetrahedral crystal, which is the characteristic of uranium! They couldn't believe their eyes for a moment. At this point, it was already dawn. They soon did another photosensitive experiment to make sure the result was correct. This is the scene of rushing out of the laboratory to report to the director Li Siguang.
In order to find out the occurrence and distribution of local uranium deposits, Li Siguang led Nanyue Zong, Wu and others to the Pinggui Mining Bureau for nearly one month in early August of 1943. They went to Huangqiangping, Honghua Town for reexamination, and saw that the local uranium mines grew in the form of W-Sn pegmatite veins along the fault plane. After exploration, although the output is not much, it must be uranium. This is the first discovery of uranium ore in China, which has caused a sensation in the geological circles at home and abroad. Even Jiang Jingguo was very excited and held a celebration banquet for Nanyue Sect (formerly known as Jiang Kang). Since then, Nanyue Sect has been called "the father of uranium mines" by later generations. Li Siguang, Nanyue Zong and Wu obtained a small amount of uranium ore during their travels and returned to Yanshan on the eve of the opening of the National Guangxi University.