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国外早己发现了超大型陆相火山岩型铀矿床 ,但我国迄今尚末找到。我国有广泛分布的陆相火山岩 ,能否找到此类超大型铀矿床 ,这是当前火山岩铀矿地质工作者急待解决的重要课题。本文在剖析了世界上已发现的超大型陆相火山岩型铀矿床的成矿环境和成矿条件及我国大型陆相火山岩型铀矿床成矿特点的基础上 ,对我国陆相火山岩的时空分布规律及我国主要构造火山岩带成矿潜力作了评述 ,综合得出在我国找到超大型陆相火山岩型铀矿床是有可能的 ,并确认赣杭、南岭、燕辽、大兴安岭等构造火山岩带具备形成超大型陆相火山岩型铀矿床的地质条件。上述主要构造火山岩带与其它构造火山 ( -侵入 )岩带交汇重叠部位 ,是最有希望的突破区。
Foreign super-large continental volcanic-type uranium deposits have been discovered abroad, but so far our country has not yet found it. There are widely distributed terrestrial volcanic rocks in our country. Whether or not such super-large uranium deposits can be found is an important issue to be solved urgently by the current geologists of volcanic uranium deposits. Based on the analysis of the metallogenic environment and metallogenic conditions of the ultra-large continental volcanic-type uranium deposits in the world and the metallogenic characteristics of the large-scale continental volcanic-hosted uranium deposits in China, the spatial and temporal distribution of terrestrial volcanic rocks in China And the main tectonic setting of volcanic belt in China. It is concluded that it is possible to find an ultra-large continental volcanic-type uranium deposit in China, and it is confirmed that structural volcanic belts such as Ganhang, Nanling, Yanliao and Daxinganling are formed Geological conditions of superlarge continental volcanic type uranium deposits. The main structural volcanic belt and other tectonic volcanic (intrusive) rock belt intersection overlap, is the most promising breakthrough area.