黑龙江五道沟地区土壤地球化学异常特征及找矿预测

Soil Geochemical Anomaly Characteristics and Prospecting Prediction in Wudaogou Area,Heilongjiang Province

为优选黑龙江省五道沟地区找矿靶区,在详细了解该矿区地质特征的基础上开展了1∶10000土壤地球化学测量工作。经过综合分析7种元素的地球化学参数以及元素分形特征,得出Au、Mo、As元素成矿潜力较大。运用SPSS25统计学软件对7种微量元素进行了R型因子分析,并划分出了F1(Cu-As-Sb)、F2(Mo-Bi)、F3(Zn-Au)共3个因子分组。结合研究区成矿地质特征及主成矿元素异常图、因子得分异常图的套合情况对区内异常部位进行了综合分析,最终划分出了3个找矿预测靶区。对Ⅰ号靶区进行了槽探和钻探工程验证,发现3条较好的工业金矿体,表明黑龙江五道沟地区具有较好的金矿成矿潜力。

In order to optimize the prospecting target area in Wudaogou area of Heilongjiang Province,1∶10000 soil geochemical survey was carried out on the basis of detailed understanding of the geological characteristics of the mining area.Through comprehensive analysis of the geochemical parameters and element fractal characteristics of the seven elements,it is concluded that Au,Mo and As elements have great metallogenic potential.The R-type factor analysis of 7 trace elements was carried out by SPSS25 statistical software,and three factor groups of F1(Cu-As-Sb),F2(Mo-Bi)and F3(Zn-Au)were divided.Combined with the metallogenic geological characteristics of the study area and the matching of the main metallogenic element anomaly map and the factor score anomaly map,the anomaly parts in the area were comprehensively analyzed,and finally three prospecting prediction target areas were divided.The trenching and drilling engineering verification of the No.Ⅰtarget area was carried out,and three good industrial gold ore bodies were found,indicating that the Wudaogou area in Heilongjiang has good gold mineralization potential.