综合物探方法在河南夜长坪钼钨矿外围找矿中的应用及效果  

Application and prospecting effect of comprehensive geophysical prospecting in the adjacent region of Yechangping Mo deposit,Henan

作　　者：刘鲜民[1,2] 徐新光[1,2] 李磊[1,2] 

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,洛阳471000 [2]河南省金银多金属成矿系列与深部预测重点实验室,洛阳471000

出　　处：《矿产勘查》2015年第4期445-450,共6页Mineral Exploration

基　　金：河南省国土资源厅2009年度地质矿产科技攻关项目(编号:2010-61-6)资助

摘　　要：夜长坪钼钨矿是典型的斑岩—夕卡岩型矿床,与隐伏花岗斑岩体关系密切。为寻找和扩大其钼钨矿资源,在地质研究的基础上,在矿区外围开展了重力测量和可控源音频大地电磁测深。对所取得的相关资料进行了处理、分析和科学推断解释,弄清了区内隐伏花岗岩体的分布、埋深,理清了隐伏断裂构造的分布及其特征,继而圈定了成矿有利区,为深部钻探工程施工提供了物探依据。经钻探验证,在矿区外围深部发现了钼钨矿(化)体,证明了综合物探方法在寻找深部隐伏金属矿床的有效性。The Yechangping molybdenum -tungsten deposit is a typical porphyry -skarn type deposit, which has close relation- ship with concealed granite porphyry bodies. To find and enlarge the resource tonnage of molybdenum - tunsten metals, the gravity sur- vey and controllable source audio frequency magnetotelluric sounding have been carried out in the adjacent region of the deposit based on the study of deposit geology. After data processing, integrated analysis and scientific interpretation, the distribution and buried depth of granite intrusion have been outlined, the distribution and characteristics of buried faults have been clarified, and finally the favorable prospecting areas for Mo - W mineralization have been delineated. After test drilling, the molybdenum - tungsten ore bodies have been discovered at depth in the adjacent region of the deposit. Therefore, the successful application of comprehensive geophysical prospec- ting method has been proved to be effective in the exploration of concealed metallic deposits.

关 键 词：夜长坪钼钨矿 综合物探方法 成矿预测 工程验证河南 

分 类 号：P618.65[天文地球—矿床学] P618.67[天文地球—地质学]