小秦岭大湖金矿区深部矿体原生晕特征及其找矿应用  

Characteristics and application of the orebody primary halo in Dahu gold deposit,Xiaoqinling,Henan Province

作　　者：王社全 薛志强 孙保花 WANG Shequan;XUE Zhiqiang;SUN Baohua(No.1 Institute of Geological and Mineral Resources Survey of Henan,Luoyang 471000,Henan,China;Center for Applied Engineering Technology in Ecology and Exploration Geochemistry,Luoyang 471000,Henan,China)

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,河南洛阳471000 [2]生态与勘查地球化学应用工程技术研究中心,河南洛阳471000

出　　处：《矿产勘查》2020年第7期1534-1543,共10页Mineral Exploration

基　　金：中国地质调查局老矿山深部和外围找矿项目(编号:1212011220698)资助。

摘　　要：矿床原生晕地球化学轴向分带是深部矿体预测的重要依据。金成矿成晕具有多期多阶段叠加特点,本文通过对大湖矿区矿体原生晕元素进行统计分析和空间分布特征研究,总结了大湖矿区金矿体的原生晕理想模型:即前缘晕元素组合为As、Sb,近矿晕元素组合为Bi、Au、Ag、Mo、Pb、Cu,矿尾晕元素组合为Mn、Zn、V、Co、Ni。根据原生晕特征进行成矿预测,经过工程验证,在8线发现4层金矿体,在4线发现1层金矿体,取得了较好的找矿效果,为小秦岭金矿田其他矿区的深部找矿勘探提供了参考。This paper focuses on the characteristics of primary halo in Dahu gold deposit.The results show that the combination of front halo elements are As and Sb,the near ore halo elements combination are Bi,Au,Ag,Mo,Pb and Cu,the ore tail halo elements are Mn,Zn,V,Co and Ni;According to the characteristics of primary halos,we take a metallogenic prognosis,and get a prospecting results.

关 键 词：金矿 原生晕 深部找矿 大湖 小秦岭金矿田 

分 类 号：P595[天文地球—地球化学] P618.51[天文地球—地质学]