江西于都草坪嶂钨矿床地质特征及控矿因素分析

Geological features and ore-controlling factors of Caopingzhang tungsten deposit in Yudu County,Jiangxi Province

江西于都草坪嶂钨矿床位于长坑矿田北东侧,属外接触带石英脉型和破碎蚀变岩型钨矿床。根据地表矿化特征,圈出5组矿化标志带共42条矿化体。矿床的形成主要受地层岩性、断裂构造、岩浆岩等因素控制,对照南岭成矿带内钨矿床“上脉下体”组合型的“五层楼+地下室”钨矿成矿模式,预测矿山具较大的资源潜力和找矿前景。

The Caopingzhang tungsten deposit is located in the northeast side of the Changkeng ore field,which belongs to the quartz vein type and fractured alteration type.Based on surface mineralization,5 mineralized zones including 42 mineralization body were founded.The formation of the Caopingzhang tungsten deposit were mainly controlled by stratum lithology,fracture structure and igneous rock.According to the combinatorial types of the"veins up and ore bodies underneath"of the metallogenic model of"five-storey and basement"of the tungsten deposits in the Nanling metallogenic belt,it was predicted that the deposit had great potential and prospecting future.