秦岭西部铧厂沟金矿床主矿带原生晕分带特征及深部预测  

PRIMARY HALO ZONING AND DEEP PREDICTION OF THE MAIN ORE BELT IN HUACHANGGOU GOLD DEPOSIT,WESTERN QINLING MOUNTAINS

作　　者：曹强 刘家军[1] 吴杰 陶银龙 王立新 刘相红[3] CAO Qiang;LIU Jia-jun;WU Jie;TAO Yin-long;WANG Li-xin;LIU Xiang-hong(China National Geological and Mining Corporation,Beijing 100029,China;State Key Laboratory of Geological Processes andMineral Resources/School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083,China;Lueyang Huachanggou Gold Mine,Lueyang 724312,Shaanxi Province,China)

机构地区：[1]中国地质矿业有限公司,北京100029 [2]中国地质大学(北京)地质过程与矿产资源国家重点实验室/地球科学与资源学院,北京100083 [3]陕西略阳铧厂沟金矿,陕西略阳724312

出　　处：《地质与资源》2021年第1期27-36,98,共11页Geology and Resources

基　　金：国家自然科学重点基金项目“秦岭成矿域复合造山过程中印支-燕山期金-多金属成矿作用”(编号41730426);“西秦岭卡林-类卡林型金矿床的成矿地质背景与叠加成矿作用研究”(编号41030423);中国地质调查局“中国矿产地质志”项目(编号DD20190379-87);中国地质调查局地质调查工作项目(编号1212011220924).

摘　　要：为了解铧厂沟金矿原生晕分布规律、提高找矿勘查效率,对铧厂沟金矿的原生晕进行了元素相关性分析、R型聚类分析以及因子分析等,并结合了野外工作及前人研究成果,得到铧厂沟金矿床理想的分带组合:前缘晕为As-Te-Sb-Hg,近矿晕为Ag-Au-Bi-Pb-Zn-Se,尾晕为Sc-Co-Ni-Mo-Cu-Cd-Mn.铧厂沟金矿的主矿带分带顺序为:Sc-Se-Mn-Cu-Cd-Ni-Zn-Ag-Au-Pb-Sb-Mo-Te-Co-Bi-Hg.结合原生晕理想的叠加模型,得到矿体从1150中段至990中段呈现不连续现象,表现为在1070中段以及下部矿体延伸至1030中段附近出现尖灭.新矿体从1030中段再次出现往下部延伸至990中段附近,并且存在往深部延伸的趋势.To know about the distribution rule of primary halo in Huachanggou gold deposit and improve the efficiency of prospecting and exploration,the paper makes the element correlation analysis,R-mode cluster analysis and factor analysis of the primary halo,combined with the field survey and previous research results,and obtains the ideal zoning combination of Huachanggou gold deposit as follows:As-Te-Sb-Hg for the front halo,Ag-Au-Bi-Pb-Zn-Se for the near-ore halo and Sc-Co-Ni-Mo-Cu-Cd-Mn for the rear halo,with Sc-Se-Mn-Cu-Cd-Ni-Zn-Ag-Au-Pb-Sb-Mo-Te-Co-Bi-Hg as the zoning sequence of main ore belt.Combined with the ideal model of primary superimposed halo,it is concluded that the orebody is discontinuous from Level 1150 m to Level 990 m,that is,the orebody extending from Level 1070 m downward and pinching out near Level 1030 m,then appearing again from Level 1030 m to Level 990 m,showing a tendency of deep extension.

关 键 词：原生晕 数学地质分析 轴向分带 金矿床 陕西省 

分 类 号：P618.51[天文地球—矿床学]