吉林大学学报(地球科学版) ›› 2019, Vol. 49 ›› Issue (5): 1301-1316.doi: 10.13278/j.cnki.jjuese.20180088
杨细浩1, 胡文洁1, 钟起泓1, 朱昌杰1, 万欢1, 胡正华1,2
Yang Xihao1, Hu Wenjie1, Zhong Qihong1, Zhu Changjie1, Wan Huan1, Hu Zhenghua1,2
摘要: 东坪钨矿床是近年在赣北地区新发现的首个超大型石英脉型黑钨矿矿床,位于长江中下游成矿带幕阜山地区东坪-香炉山钨矿找矿远景区东部。矿床赋矿层位为新元古代双桥山群安乐林组浅变质岩系,北东向断裂及其两侧的次级裂隙为区内主要控矿构造、容矿构造,隐伏的燕山晚期黑云母二长花岗岩为成矿岩体,与区内钨多金属成矿关系密切的为石英脉状硅化;两个矿带的钨矿体均产于成矿岩体外接触带,呈现了石英脉型黑钨矿矿床典型的"五层楼"分带特征,矿石工业类型主要为黑钨矿矿石;明确了构造和岩浆岩等主要控矿因素;总结出地表微细裂隙云英岩化-黄铁矿化蚀变带、含硫化物石英细脉带、石英脉、重砂及地球化学异常为区内主要找矿标志。
中图分类号:
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