一、绪言自从1939年赫恩和斯托拉曼发现利用慢中子轰击铀原子核可使铀原子核分裂释放出大量的能量以来,原子能工业开始飞速发展,而铀矿便成为重要的矿产资源,第二次世界大战以后,各资本主义国家都特别重视铀矿地质工作,都先后建立了专门的组织机构负责进行铀矿资源的普查、勘探、开采及其相应的研究工作。 I. INTRODUCTION Since Heine and Stolman found in 1939 that the use of slow neutron bombardment of uranium nuclei can release a large amount of energy into the uranium nuclei, the atomic energy industry has started its rapid development and uranium deposits have become an important mineral resource. After the Second World War, all capitalist countries paid special attention to the geological work of uranium deposits. All of them established special organizations responsible for the census, exploration and exploitation of uranium resources and their corresponding research work.