相山铀矿田第二找矿空间初探

相山矿田业已探明的铀资源量主要分布于地表以下500m深度空间内。矿田北部铀矿化多赋存于花岗斑岩及其内、外接触带，西部铀矿化主要赋存于火山熔岩内断裂构造、不同岩性界面附近，铀矿化空间上表现为界面控矿特征。据现代水热成矿理论，结合矿田以往和近年来勘查成果的系统分析以及与国外成矿地质条件类似的矿田（床）对比，认为相山矿田存在第二找矿空间，并且第二找矿空间内可能存在第二铀矿化富集带，第二找矿空间具较乐观的铀资源潜力，近年来矿田深部找矿成果对其提供了支持。

Preliminary discussion on Xiangshan second ore-prospecting space in uranium ore field

The uranium resources discovered in Xiangshan ore field mainly are located in the depth of 500 m. In the north of ore field, uranium mineralization occurs in granitic porphyry and its interior and outer contact zone. In the west of ore field, uranium mineralization is mainly hosted in faults of volcanic lava and the boundary of different rocks. Therefore uranium mineralization is spatially controlled by the interface. Based on the modern theory of hydrothermal metallogenesis, by analyzing past and recent exploration results and comparing similar foreign metallogenic geological conditions, we consider that there is second orb-prospecting space in Xiangshan ore field. In the second ore- prospecting space, there may be the second uranium mineralization zone. Optimistic resource potential may exist in the second ore-prospecting space which has been proven by recent deep exploration results in the ore field.