本文討論两个問題:一是稀土元素的成矿問題;另一是鈾的地球化学。稀土成矿与锆、铪、铌、钽及若干元素有成因上的关系,它們同重放射性元素的演变是直接連系着的,因此概括討論鈾的地球化学行为还是有必要的。末后討論有关稀土矿的分布。本文以稀土元素的核地球化学为中心,探討成矿問題。对于原手地球化学及矿床方面不在这里叙述。 This article discusses two issues: one is the mineralization of rare earth elements; the other is the geochemistry of uranium. Rare earth mineralization has a genetic relationship with zirconium, hafnium, niobium, tantalum and several elements, which are directly related to the evolution of radioactive elements. Therefore, it is necessary to generalize the geochemical behavior of uranium. Later on the distribution of rare earth ore. In this paper, the nuclear geochemistry of rare earth elements as the center, to explore the issue of mineralization. For the original hand geochemistry and mineral deposits are not described here.