熊耳山地区栗子沟金矿勘查区构造叠加晕研究及找矿预测  

Structural superimposed halo and prospecting prediction in Lizigou gold exploration area,Xiong'er Terrane

作　　者：刘清泉[1,2,3] 张青山 曾毅 李建岭[4] 李冰 赵红涛[1,2,3] 陈向阳 陈肇华 熊伊曲[1,2,3] 邵拥军 LIU Qingquan;ZHANG Qingshan;ZENG Yi;LI Jianling;LI Bing;ZHAO Hongtao;CHEN Xiangyang;CHEN Zhaohua;XIONG Yiqu;SHAO Yongjun(Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring(Central South University),Ministry of Education,Changsha 410083,Hunan,China;Key Laboratory of non-ferrous and geological hazard detection,Changsha 410083,Hunan,China;School of Geosciences and Info-Physics,Central South University,Changsha 410083,Hunan,China;Henan Second Geological Brigade Co.,Ltd.,Zhengzhou 451191,Henan,China)

机构地区：[1]有色金属成矿预测与地质环境监测教育部重点实验室(中南大学),湖南长沙410083 [2]有色资源与地质灾害探测湖南省重点实验室,湖南长沙410083 [3]中南大学地球科学与信息物理学院,湖南长沙410083 [4]河南省第二地质大队有限公司,河南郑州451191

出　　处：《矿产勘查》2024年第9期1711-1719,共9页Mineral Exploration

基　　金：河南省豫地科技集团有限公司“河南省栾川县潭玉沟—嵩县栗子沟银金多金属矿权维护及中深部成矿预测”(豫地矿产[2024]4号);河南省第二地质大队有限公司“河南省栾川县潭玉沟—嵩县水磨一带金银矿床成矿规律与找矿预测研究”联合资助。

摘　　要：构造叠加晕地球化学找矿方法在深边部找矿勘查中能够发挥重要作用,该方法主要应用于矿区深部盲矿预测及对勘查(新)区和勘查程度较低的矿区进行相对研究预测。本文基于构造叠加晕理论开展了熊耳山栗子沟金矿的构造叠加晕地球化学特征研究,通过分析围岩和金矿脉的微量元素特征,确定了栗子沟金矿微量元素异常背景值和矿体指示元素特征。通过元素相关性分析,结合“参照实用理想模型”,确定了栗子沟金矿的前缘晕元素、近矿晕元素和尾晕元素以及元素异常浓度分带,结果显示栗子沟金矿存在多阶段成矿作用叠加的特点。指示元素的轴向变化特征和规律表明前尾晕共存是栗子沟金矿重要的深部找矿预测标志。在综合分析的基础上,圈定了预测靶区。Structural superimposed halo geochemistry has played an important role in deep and side prospect⁃ing,especially in new and low exploration areas.Based on the theory of superimposed halos,the geochemical characteristics of superimposed halos in the Lizigou gold deposit are studied in this paper.By analyzing the characteristics of trace elements in surrounding rock and gold veins,the background values of trace elements and the characteristics of indicator elements of gold veins are determined.Based on the element correlation analysis and the reference practical ideal model,the front halo elements,near-ore halo elements and tail halo elements as well as the abnormal concentration zoning of elements in the Lizigou gold deposit are determined.The results show that there is multi-stage mineralization superposition in the Lizigou gold deposit.The axial variation and indicator elements'characteristics are analyzed.It is considered that the coexistence of fore-tail halos is an important indica⁃tor for deep prospecting prediction in the Lizigou gold deposit,and the typical favorable ore-forming sites are predicted.

关 键 词：构造叠加晕 找矿预测 栗子沟 熊耳山 

分 类 号：P596[天文地球—地球化学]