粤北花岗岩型铀矿关键控制要素及勘查部署建议

Key Controlling Factors of Granite-type Uranium Deposit and Exploration Deployment Recommendation for Northern Guangdong

粤北地区是我国花岗岩型铀矿最重要产区,在系统分析粤北地区花岗岩型铀矿成矿地质背景、成矿主要特征的基础上,结合最新铀矿勘查成果及理论创新,总结了粤北地区花岗岩型铀矿关键控制要素。区域铀矿化明显受岩浆活动中心、断陷带及多期次蚀变叠加区联合控制;铀矿体定位于断裂构造、热液蚀变、不同类型界面“三位一体”中。以“立足诸广、巩固下庄、开发新区”为总体战略布局,重点揭露诸广、扩大探索下庄、兼顾探索青嶂山,分层次开展铀矿找矿工作为总体思路,提出下一步找矿勘查部署建议。

Northern Guangdong is the most important producing area of granite-type uranium deposits in China.By systematically analyzing the metallogenic geology background and main characteristics of granite-type uranium deposits in northern Guangdong,the key controlling factors for granite-type uranium deposits was summarized with the latest uranium exploration results and theoretical innovations in northern Guangdong.The regional uranium mineralization is clearly controlled by the magmatic activity center,the fault depression zone and the multi-stage alteration superposition area.The uranium ore body is located in the trinity of fault structure,hydrothermal alteration and different types of interfaces.A overall strategy of Consolidating Xiazhuang and Developing New Districts With Zhuguang as Foothold was proposed by focusing on the exposing of Zhuguang mining area,expanding the exploration of Xiazhuang mining area and carring about the survey of Qingzhang Mountain pluton.And the exploration deployment was recomanded to be conducted into different levels.