河南罗山竹园西铜钼矿区地质特征及找矿远景  

Geological Characteristics and Prospecting Prospective of Zhuyuanxi Cu-Mo Mining Area in Luoshan County,Henan Province

作　　者：刘坤[1] 李瑞强[1] 李开文 陈泳霖 LIU Kun;LI Ruiqiang;LI Kaiwen;CHEN Yonglin(Henan Institute of Geological Survey,Zhengzhou 450001,China;Henan Key Laboratory for Metal Mineral Ore-forming Geological Process and Utilization of Resource,Zhengzhou 450001,China)

机构地区：[1]河南省地质调查院,河南郑州450001 [2]河南省金属矿产成矿地质过程与资源利用重点实验室,河南郑州450001

出　　处：《金属矿山》2022年第1期195-204,共10页Metal Mine

基　　金：中国地质调查局基金项目(编号:121201102000150012-06)。

摘　　要：竹园西铜钼矿区位于华北克拉通南缘与秦岭造山带的衔接部位,成矿区带属桐柏—大别钼成矿带,为铜钼多金属成矿有利地区。为深入研究该区成矿潜力,在区内开展了1∶10000地质测量、1∶10000土壤测量、1∶1000地质剖面测量及槽探、钻探等系统的矿床勘查工作。矿区地质特征研究表明:①矿区内铜钼矿床主要控矿因素为岩体与构造,灵山岩体花岗斑岩为其成矿母岩,并在断裂交汇部位可形成富矿体;②矿区圈定的2条Mo矿体和1条Cu矿体均赋存于花岗斑岩中,矿床具有斑岩型钼矿特征。在上述分析的基础上,根据1∶10000地质测量→1∶10000土壤测量→1∶1000地质剖面测量→槽探、钻探揭露的找矿技术流程,在区内圈定了2处钼矿找矿靶区(靶区A和靶区B),经工程验证发现靶区深部存在隐伏花岗斑岩体及多条钼矿体,且靶区A内钼矿体估算的(控制)+(推断)资源量规模达到中型。综合区内成矿地质特征,并与邻近同类型矿床进行类比,认为竹园西铜钼矿区中深部成矿潜力相对较大,可进一步开展勘查工作。Zhuyuanxi Cu-Mo mining area is located at the junction of the south margin of North China Craton and Qinling orogenic belt.The metallogenic belt belongs to the Tongbai-Dabie molybdenum ore belt,which is favorable for copper and molybdenum polymetallic ore mineralization.In order to further explore the metallogenic potential of the mining area,systematic survey and exploration works such as 1∶10000 geological survey,1∶10000 soil geochemical exploration,1∶1000 geological profile survey and exploration of pit and drilling are carried out.Study results of geological characteristics of the mining area show that:①The main ore controlling factors of copper and molybdenum deposits in the mining area are rock mass and structure.Granite porphyry is the parent rock of mineralization.Rich ore bodies are often formed at the intersection of faults.②Two Mo ore bodies and one Cu ore body fornd in the mining area are hosted in granite porphyry,which have the characteristics of typical porphyry and molybdenum deposit.Based on the above analysis results,according to technical process of prospecting including 1∶10000 geological survey,1∶10000 soil geochemical exploration,1∶1000 geological profile survey,trenching and drilling exposure,two molybdenum prospecting targets(named as A and B)have been identified in the mining area.Through engineering verification,it is found that there are concealed granite porphyry and many molybdenum ore bodies in the deep part of the target area.The estimated(controlled)+(inferred)resource scale of molybdenum ore bodies in target area A is medium.According to the metallogenic geological characteristics of the area and the analogy with the adjacent similar deposits,it is considered that the middle and deep parts of Zhuyuanxi Cu-Mo mining area have great metallogenic potential,which is worthy for further work.

关 键 词：铜钼矿 花岗斑岩 深部找矿 地质特征 成矿潜力 找矿靶区 

分 类 号：TD11[矿业工程—矿山地质测量] P612[天文地球—矿床学]