岩屑地球化学测量在小冰沟铅锌矿区的找矿效果  

THE PROSPECTING EFFECT OF DEBRIS GEOCHEMICAL SURVEY IN THE XIAOBINGGOU LEAD-ZINC MINING AREA IN SUBEI,GANSU ROVINCE

作　　者：叶红刚[1,2] 张德会[1] 程主华 叶红锋 吴胡[1,4] 

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]甘肃省地矿局第四勘查院,甘肃酒泉735000 [3]甘肃省地矿局第三勘查院,甘肃兰州730000 [4]湖北省煤炭局,湖北武汉430070

出　　处：《物探与化探》2014年第2期295-303,共9页Geophysical and Geochemical Exploration

基　　金：中央地质勘查基金项目(2011621036)

摘　　要：小冰沟铅锌矿区位于祁连高寒景观区内,通过对矿区1∶1万岩屑测量数据进行R型因子分析及参数统计,揭示了区内元素组合特征,并圈定了单元素异常和综合异常。在矿区圈定的3处有远景的综合异常区内,通过物探工作、1∶1万地质填图及不同程度的槽探、硐探和钻探一级查证,圈定了理想的矿体,实现了找矿突破。岩屑测量方法在此区域目前应用较少,小冰沟化探指导找矿的成功,证明此法行之高效,为同类型地球化学景观区内找矿提供了借鉴价值。The Xiaobinggou lead-zinc mining area is located in the Qilian cold landscape zone. With the R-model factor analysis methodand parameter statistics based on data of 1 ∶ 10 000 debris survey, the authors revealed the element assemblages in the study area, anddelineated the single element anomalies and the comprehensive anomalies. Through the first-level anomaly inspection in the three siftedcomprehensive anomaly areas which consists of geophysical exploration method, 1 ∶ 10 000 field geological mapping and different de-grees of trenching and adit exploration as well as drilling, the authors outlined the ideal ore bodies and achieved breakthrough in pros-pecting. Debris geochemical survey has been relatively rarely employed in this region, but the success of this method in guiding theprospecting work has proved its high efficiency in the Xiaobinggou lead-zinc mining area. So, debris geochemical survey can provide areference for ore-prospecting work in the same sort of geochemical landscape areas.

关 键 词：地球化学勘查 高寒景观区 岩屑测量 因子分析 一级查证 找矿效果 

分 类 号：P632[天文地球—地质矿产勘探]