沽源火山盆地铀钼多金属成矿地质条件分析及找矿方向

沽源火山盆地是我国北方重要的铀钼多金属矿勘查基地和矿业开发基地。文章在总结矿床地质特征的基础上，重点分析了多金属矿成矿地质条件、矿化特征和成矿时代以及成矿作用与中生代次火山岩和断裂构造关系。认为在盆地基底变质岩中寻找岩浆热液叠加改造型的层控铅锌银金矿床、在盆地火山岩盖层中寻找火山岩热液型铀钼矿床具有良好的找矿前景。

Geological conditions for ore-forming process and prospecting direction of the U-Mo polymetallic deposits in Guyuan volcanic basin

Guyuan volcanic basin is an important base for exploring U-Mo polymetallic deposits and mining development in northern China. Based on the geological characteristics of the deposits, the study has analyzed ore-forming geological conditions, mineralization characteristics, and the relationship between metallogenic epoch with mineralization and Mesozoic sub-volcanic rocks with fracture structure. The study believed that a great prospecting perspective should be there if we prospected for strata-bound Pb-Zn-Ag-Au deposits that were overlapped and altered by magmatic hydrotherm in basement metamorphic rocks of the basin, and prospected for volcanic rocks-host hydrothermal U-Mo deposits in caprocks of the volcanics in the basin.