构造叠加晕法在陕西小秦岭陈耳金矿床深部找矿中的应用——以Q507号金矿脉为例
Application of the tectonic superimposed halo method for deep mineral wxploration at Chen'er gold mine in Xiaoqinling,Shaanxi Province:A case study of the Q507 Vein
文月贵 1张欢欢 1郭宣讲 2赵雷刚 2郭龙 2杨莉 1崔国帅2
作者信息
- 1. 陕西地矿第六地质队有限公司,陕西 西安 710611
- 2. 中国黄金集团公司陕西鑫元科工贸有限公司,陕西 商洛 726000
- 折叠
摘要
陈耳金矿床位于华北地块南缘,是陕西小秦岭金矿田最具代表性的石英脉型金矿床之一,矿体主要赋存于太古宇太华群区域变质片麻岩中,矿床目前已探明金资源量累计达20 t以上,其中Q507号金矿脉是矿山主要开采的矿脉.本文在研究矿床地球化学背景的基础上,对Q507号金矿脉开展了构造叠加晕研究,结果表明矿床存在明显的原生晕轴向分带规律,在此基础上运用已有的构造叠加晕法找矿预测标志在深部圈定两处找矿靶区,经工程验证揭露到了工业矿体,初步证明"构造叠加晕法"在深部盲陈耳金矿床矿体预测方面具有一定的指导作用.
Abstract
The Chen'ergolddeposit,located in the southern margin of the North China Craton,is oneofthemostrepresentative quartz vein-type deposit oftheXiaoqinling gold field in ShaanxiProvince.The ore body occurs within the Paleoproterozoic gneisses of the Taihua Group,andhastotal gold reservesexceeding 20 tons,of which the Q507 is the mainmining vein.On the basis of studying the geochemical background of ore deposit,the tectonic superimposed halo has been applied for Q507 ore vein.The results show that there is an obvious axial zona-tion rule of primary halo in the ore deposit.In this case,two prospecting targets are delineated in the deep by using the existing prospecting prediction markers of structural superposition halo method,and the industrial ore bodies have been verified by engineering.It is preliminarily proved that the"superimposed halo method"playsanimportantrole in the prediction of deep blind ore bodies.
关键词
小秦岭金矿/构造叠加晕/找矿预测/陈耳金矿Key words
Xiaoqinling gold mine/tectonic superimposed halo/prospecting prediction/Chen'er gold deposit引用本文复制引用
基金项目
陕西地矿集团有限公司地质科研专项(KY202218)
出版年
2024
NETL
NSTL
万方数据