一、前言火山岩型铀矿是我国重要的工业铀矿床类型之一,它的储量约占总储量的五分之一。在火山岩地区开展铀矿床普查也很有远景,根据我国东南沿海一个省的统计,该省发现的铀矿床矿化中,火山岩型铀矿占总数的81.6%,火山岩中发现的放射性异常占异常总数的62.9 I. Introduction Volcanic-type uranium deposits are one of the most important types of industrial uranium deposits in our country, and their reserves account for about one-fifth of the total reserves. According to the statistics of a province along the southeast coast of China, 81.6% of the total number of uranium deposits discovered in the province is mineralization of volcanic uranium deposits, and the total number of abnormalities of radioactive anomalies found in volcanic rocks Of 62.9