灵北断裂带黄埠岭-七里山段构造地球化学找矿预测  

Prospecting prediction with tectonic geochemistry in Huangbulin-Qilishan section,Lingbei fault zone

作　　者：陈艳[1] 杨斌[1] 王慧 梁恩云[1] 刘海钢[1] 

机构地区：[1]中南大学地学与环境工程学院,长沙410083 [2]山东招金集团,广东招远265400

出　　处：《矿产与地质》2011年第2期148-151,共4页Mineral Resources and Geology

基　　金：国家科技支撑计划课题(编号:2006BAB01B07);973计划前期研究专项课题(编号:2007CB416608);有色金属成矿预测教育部重点实验室资助

摘　　要：采用构造地球化学方法,在黄埠岭-七厘山测区约13.8km2范围,共采集865个样品,测试了Au、Ag、Cu、Pb、Zn、Bi、Ni、Co、Mo、Sn、As、Sb、Hg、Ba、B、Mn、V、Ti、Cr等19种元素。Au异常的分布与测区已知矿体分布范围相吻合,其中黄埠岭测区Au异常范围最大、强度最高,七厘山测区及凤凰庄-选厂一带Au异常的强度和范围次之。Ag、Bi异常与Au异常有较高的套合性。通过聚类分析、因子分析等多元统计分析,结合地质分析提出测区最佳近矿成矿指示元素组合为Au-Ag-Bi-Cu,矿体旁侧及外围成矿指示元素组合为As-Sb-Hg-Pb。按异常规模、强度、元素组合并结合成矿地质条件分析,共圈定9处找矿靶位。The Huangbuling-Qilishan gold diggings are located in the SW end of Lingbei fault zone.The measurement area with tectonic geochemistry was 13.8km2 in Huangbuling-Qilishan diggings.The 865 samples were collected and 19 elements including Au,Ag,Cu,Pb,Zn,Bi,Ni,Co,Mo,Sn,As,Sb,Hg,Ba,B,Mn,V,Ti,Cr were tested.The distributions of Au anomalies were consistent with the known orebodies in Huangbuling-Qilishan diggings.The largest area of Au anomaly was in Huangbuling digging where the consistence of Au anomaly was also the highest.Qilishan and Fenghuangzhuang-Xuanchang survey areas took second place.Ag and Bi anomalies had a high extent of conformity with Au anomaly.Based on the multivariate statistical analysis such as clustering analysis,factor analysis and geological analysis,it was suggested that the optimal indicator elements association near orebodies were Au-Ag-Bi-Cu.As-Sb-Hg-Pb association abnormities appeared in orebodies' periphery.The 9 prospecting target positions were determined by tectonic geochemistry anomalies' scale,intensity,elements association and metallogenic conditions.

关 键 词：构造地球化学 多元统计分析 找矿靶位优选 黄埠岭-七厘山矿区 灵北断裂带 

分 类 号：P5[天文地球—地质学]