火山岩型铀矿床与火山活动及火山岩有无成因联系?铀从何而来?这是不少地质工作者关注的一个问题。1984年在美国举行的火山岩中铀矿床国际学术讨论会上,有关铀源及成因等问题存在较大分歧。因此,研究火山岩中铀的原始状态、配分及活化迁移,不仅有助于上述问题的探讨,而且对讨论成矿机制、确定选区标志等都是有益的。 Volcanic-type uranium deposits and volcanic activity and volcanic rock whether genetic causes and uranium come from? This is the concern of many geologists a problem. At the 1984 International Symposium on Uranium Deposits in Volcanic Rocks held in the United States, there were major differences on issues such as the origin of uranium and its causes. Therefore, studying the original state, distribution and activation of uranium in volcanic rocks is not only helpful for the discussion of the above problems, but also useful for discussing the metallogenic mechanism and identifying the constituency markers.