华南印支期花岗岩与热液型铀矿研究进展

Research Progress on Indosinian Granite and Hydrothermal Uranium Deposits in South China

华南地区位于亚洲大陆东缘,区内广泛发育不同时代的花岗岩,是我国主要的铀矿产区。以该区域为研究对象,对其在印支期的花岗岩与热液型铀矿展开研究。通过对花岗岩与热液型铀矿的年代学研究,表明印支期花岗岩对铀成矿影响密切,成岩成矿存在巨大时差。进一步通过对热液来源及铀源、铀的迁移沉淀机制、铀矿床与花岗岩的关系及铀矿床成因等方面探讨华南花岗岩型铀矿的成矿机制,说明铀成矿过程中印支期花岗岩主要起到一个提供铀源的作用,并非铀成矿决定性作用。

Southern eastern margin of the Asian continent,the region widely developed granite different times,is China's major uranium mineral district.Taking the region as the research object,its in Indosinian granite and hydrothermal uranium.Through the study's granite and hydrothermal uranium deposits,indicating close Indosinian granite influence on uranium mineralization,diagenesis and mineralization there is a huge difference.Further by hydrothermal origin uranium source,migration of uranium precipitation mechanism,relationships and genesis of uranium deposits and uranium deposits in terms of granite and mineralization mechanism investigate granite type uranium deposits in South China,indicating that uranium mineralization in granite main Indosinian play a role in providing uranium source,not uranium mineralization decisive role.