碎裂蚀变花岗岩型铀矿的赋矿岩石特征

HOST ROCK CHARACTERISTICS OF URANIUM DEPOSITS OF CATACLASTIC－ALTERED GRANITE TYPE

本文着重论述了碎裂蚀变花岗岩型铀矿的赋矿岩石特征：即岩石原始铀含量高；岩石碎裂强度大；岩石蚀变强烈；岩石组分简单，有利于铀的浸出（有害元素含量低）。这些特征可以作为识别与寻找该类型铀矿床的岩石学依据。

This paper expounds the host rock characteristics of uranium deposits of cataclasticaltered granite type,i.e.,the high initial content of uranium, the high cataclasis of hostrocks,the strong alteration of host rocks, the simple composition of host rocks favourablefor the leaching of uranium, as well as the low content of harmful associated elements.These characteristics may be regarded as petrological criteria for recognition and prospectingfor such type of uranium deposits.