广西金牙地区水系沉积物地球化学特征及找矿预测  

Geochemical characterics and exploration prediction of stream sedimentary survey in Jinya area,Guangxi

作　　者：宫研 庞宏海 韦良喜 张珩清 覃良朝 GONG Yan;PANG Honghai;WEI Liangxi;ZHANG Hengqing;QIN Liangchao(Geological Survey Institute of Guangxi Zhuang Autonomous Region,Nanning 530023,Guangxi,China;Geological Team No.273 of Guangxi Zhuang Autonomous Region,Guigang 537100,Guangxi,China)

机构地区：[1]广西壮族自治区地质调查院,广西南宁530023 [2]广西壮族自治区二七三地质队,广西贵港537100

出　　处：《矿产与地质》2024年第3期492-502,共11页Mineral Resources and Geology

基　　金：广西地矿局“广西关键矿产资源深部勘查人才小高地项目”(桂组通字[2019]85号,2019—2023)资助。

摘　　要：为了研究广西金牙地区的水系沉积物地球化学特征和找矿方向,在该地区开展1:5万水系沉积物地球化学测量。通过对10083个样品分析结果进行统计分析,分析Au、Ag、Cu、Pb、Zn、As、Sb、Hg、W、Sn、Bi、Mo、Cd、Co、Cr、Ni、Ba、V等十八个元素的元素地球化学特征参数、元素平均含量地球化学分布特征、元素R型聚类分析及元素异常特征,圈定了34处水系沉积物综合异常。依据水系沉积物综合异常、成矿地质背景、矿产分布情况等,划分出了5个卡林型金矿找矿远景区。对今后右江盆地卡林型金矿找矿方向有一定的指导意义。In order to study the geochemical characteristics of the stream sedimentary survey and exploration direction in Jinya area of Guangxi,150000 stream sedimentary survey is carried out in the area.Through statistical analysis of the analysis data of 10083 samples,the elemental geochemical characteristic parameters,average elemental content geochemical distribution characteristics,R-type clustering analysis,and elemental anomaly characteristics of 18 elements including Au,Ag,Cu,Pb,Zn,As,Sb,Hg,W,Sn,Bi,Mo,Cd,Co,Cr,Ni,Ba,V are identified,and 34 comprehensive anomalies of stream sedimentary survey are delineated.Based on the comprehensive anomalies of stream sedimentary survey,geological background of mineralization,and mineral distribution,five prospecting areas for Carlin-type gold deposit have been divided.It has a certain guiding significance for the future exploration direction of Carlin-type gold deposit in Youjiang Basin.

关 键 词：水系沉积物 卡林型金矿 金牙地区 地球化学特征 找矿预测 

分 类 号：P595[天文地球—地球化学]