土壤地球化学测量在镇沅县学堂金矿勘查中的应用  

THE APPLICATION OF SOIL GEOCHEMICAL SURVEY TO THE EXPLORATION OF XUETANG AU DEPOSIT IN ZHENYUAN

作　　者：蒋潇[1] 李维忠[1] 唐骥[1] JIANG Xiao;LI Wei-zhong;TANG Ji(Yunnan Exploration Institute of Geology and Mineral Resources,Kunming 650051)

机构地区：[1]云南省地质矿产勘查院,云南昆明650051

出　　处：《云南地质》2018年第3期353-358,共6页Yunnan Geology

摘　　要：针对镇沅县学堂金矿地质特征及成矿地质条件,开展1∶2. 5万土壤地球化学测量,野外采样按正方形网格法布设,在矿区12. 23km2的范围内,将每个1km2方格作为一个采样大格,并按线点距为125m×125m将其平均分成64个采样小格。每个小格内采集1个土壤样,所有样品进行Au、Pb等元素分析测试,并根据测试成果计算出各元素异常下限,圈定了Au、Pb等多处异常。经异常查证,在矿区发现并圈定V8金矿体。应用表明,土壤地球化学测量对金矿的寻找效果显著。According to the geological feature and condition of metallog25000 soil geochemical survey,field sample is aaanged by the square grid method. In the 12.23km2 of orefield, consider the square grid 1km2 to be a sampling big grid and divide evenly into 64 small grids with point, line interval 125mX 125m,collecting a soil sample per small grid, Au,Pb, etc element analysis arecarried out for all samples, the lower limit of ever element anomaly is calculated according to the analysis re-sult , a lot of Au, Pb,etc anomalies have been outlined. According to the anomaly examination, the Au ore- body V% has been discovered and outlined, showing the good result of soil of Au deposit.

关 键 词：土壤地球化学测量 找矿方法 云南镇沅学堂 

分 类 号：P632.1[天文地球—地质矿产勘探]