皖南旌桥地区钨钼地球化学异常找矿远景  

Prospects for Prospecting of Tungsten and Molybdenum Geochemical Anomalies in Jingqiao Area,Southern Anhui

作　　者：杜国强 李朋飞 余有林[1] 谢金金 张笑蓉 刘超[1] DU Guoqiang;LI Pengfei;YU Youlin;XIE Jinjin;ZHANG Xiaorong;LIU Chao(Geological Survey of Anhui Province(Anhui Institute of Geological Sciences))

机构地区：[1]安徽省地质调查院(安徽省地质科学研究所)

出　　处：《现代矿业》2022年第8期32-35,40,共5页Modern Mining

基　　金：中国地质局“安徽宁国-绩溪地区矿产地质调查”项目(编号:1212011220533)。

摘　　要：根据1∶5万水系沉积物测量数据,对优选的旌桥地区钨钼异常进行地球化学背景及异常特征分析,结合查证成果,评价找矿远景。结果显示,旌桥地区钨、钼地球化学综合异常以W、Bi、Mo元素组合为主,异常规模大、强度高、浓集中心明显,分布于旌德岩体东部边缘与志留系霞乡组地层接触带;岩石、土壤剖面测量显示存在原生晕和次生晕异常,在岩体与围岩内接触带新发现钨(钼)矿化带3条,与燕山期岩体、石英脉及断裂构造关系密切,成因类型为石英脉型;矿化体与异常规模、强度不相称,具有较好的钨、钼找矿前景。Based on the 1∶50000 stream sediment survey data,the geochemical background and anomaly characteristics of tungsten and molybdenum anomalies in Jingqiao area are analyzed.Combined with the verification results,the prospecting prospect is evaluated.The results show that the comprehensive geochemical anomalies of tungsten and molybdenum in Jingqiao area are mainly composed of W,Bi and Mo elements,with large scale,high intensity and obvious concentration centers,which are distributed in the contact zone between the eastern edge of Jingde pluton and the Xiaxiang Formation of Silurian.The measurement of rock and soil profile shows that there are primary halo and secondary halo anomalies.Three tungsten(molybdenum)mineralization zones are newly discovered in the contact zone between rock mass and surrounding rock,which are closely related to the Yanshanian rock mass,quartz vein and fault structure.The genetic type is quartz vein type.The mineralized body is not commensurate with the anomaly scale and intensity,and has good prospecting prospects for tungsten and molybdenum.

关 键 词：钨钼矿 地球化学异常 找矿远景 

分 类 号：P618.65[天文地球—矿床学] P618.67[天文地球—地质学] P632