河南汝阳竹园沟钼矿床物化探异常特征及找矿效果  

Geophysical and geochemical anomalies in the Zhuyuangou Mo deposit of Ruyang County,Henan Province,and their prospecting effect

作　　者：严海麒[1] 云辉[1] 王恺莉 宋勤昌 常永军 YAN Hai-Qi;YUN Hui;WANG Kai-Li;SONG Qin-Chang;CHANG Yong-Jun(Henan Institute of Geological Survey,Zhengzhou 450001,China;No.5 Institute of Geological Exploration,Bureau of Geology and Mineral Resourcesof Henan Province,Zhengzhou 450001,China)

机构地区：[1]河南省地质调查院,河南郑州450001 [2]河南省地质矿产勘查开发局第五地质勘查院,河南郑州450001

出　　处：《物探与化探》2018年第4期675-681,共7页Geophysical and Geochemical Exploration

基　　金：中国地质调查局"河南外方山地区矿产地质调查"项目(12120113061300)

摘　　要：汝阳竹园沟钼矿是在东秦岭—大别钼成矿带上新发现的中型钼矿床,矿床类型为斑岩型钼矿。通过对矿床区域物化探资料、矿区化探资料的分析研究,总结了寻找钼矿床的物化探方法,结果表明,物化探方法在找矿勘查中发挥了重要作用,并得出以下认识:含钼侵入体分布在重力低异常、磁低异常范围内,1∶5万高温热液矿物重砂异常与水系沉积物测量Mo、Pb、(Au)等综合异常重叠的地段,以及不同比例尺Mo、Pb、(Au)等元素地球化学异常重叠部位。The Zhuyuangou Mo deposit is a middle-sized Mo deposit newly discovered in the East Qingling-Dabie Mo metalogenic belt.It is a porphyry Mo deposit.Based on an analytic study of the results obtained from the regional geophysical and geochemical exploration,and geochemical exploration of the ore block in the Zhuyuangou Mo-deposit,the authors summarized the geophysical and geochemical prospecting methods for Mo deposits. The results show that geophysical and geochemical methods have played a significant role in prospecting and exploration and,on such a basis,the authors pointed out some areas which deserve attention in prospecting： the distribution of molybdenum-bearing intrusive bodies in the range of low gravity anomaly and low magnetic anomaly; stacking areas of 1 ∶ 50000 high temperature hydrothermal mineral placer anomalies and comprehensive geochemical anomalies of stream sediments of elements like Mo,Pb,（ Au）; overlapping areas of different-scale Mo,Pb,（ Ag） geochemical anomalies.

关 键 词：钼矿床 重磁异常 化探异常 找矿效果 汝阳竹园沟 

分 类 号：P632[天文地球—地质矿产勘探]