相山铀矿田石洞矿床地质特征及找矿潜力

Geological Characteristics and Prospecting Potential of Shidong Deposit in Xiangshan Uranium Orefield

在详细阐述石洞矿床地质特征的基础上,着重对矿床及其外围放射性伽玛场特征及成矿期构造活动进行了研究,认为NW向构造是矿床的控矿构造,构造界面是重要的成矿地质界面,放射性伽玛场及异常点受构造控制,并对深部隐伏铀矿化具直接指示作用。晚成矿期,NE向邹家山—石洞构造左旋走滑,NW向构造在NE向构造两侧错移并发生张扭破碎,为矿质卸载提供了空间。矿床内F4,F5及可能存在的隐伏F6构造,具有较大的找矿空间和找矿潜力,矿床规模可望达到大型。

On the basis of analysis of the geological characteristics of Shidong deposit,the research on radioactive gamma field features of the deposit and its peripheral and the structural activity in metallogenic epoch shows that:NW-trending structure is the ore-controlling structure of the deposit,structural interface is the metallogenic interface,radioactive gamma field which are controlled by the structural have directly indicate for concealed uranium mineralization. Late mineralization stage,sinistral strike-slip motion of the NE-trending Zoujiashan-Shidong structural occurred,NW-trending structure was moved and broken by transtension. so the structure provided the space for mineralization. F4,F5 and F6 of the deposit have a large prospecting space and prospecting potentinl. Therefore,the scale of the deposit may be reach to large.