土壤地球化学在广南斗月金矿中的应用

对现已发现的超大型金矿和国内金矿资源进行统计,结果表明,大型、超大型矿床中与微细浸染型金矿相对应的金矿成因类型(如渗滤热液型金矿、含碳浅变质碎屑岩型金矿等)占有很大比例。因此开展对微细浸染型金矿的研究和找矿具有重要的实际意义。在广南斗月金矿开展1∶10000土壤地球化学测量(简称化探),了解测区以Au为主的As、Sb、Hg、Ag土壤地球化学背景,确定化探异常下限,圈定Au、As、Sb、Hg、Ag化探(次生晕)异常,根据各异常面积的大小、浓度的高低以及五个元素异常套合(组合)情况等综合因素,对化探综合异常进行评序和分级,结合地质简测等地质资料的综合研究分析,判别具有潜在找矿价值的异常区,为进一步地质勘探工作提供靶区。

The Application of Soil Geochemistry in Guangnan Douyue Gold

The world has been detected on the super large gold deposits of the statistical results and the domestic gold resources statistical results, large, super large ore deposits of fine disseminated type gold deposit corresponding to the genetic types of gold deposits （such as infiltration hydrothermal type gold deposits, carbon epimetamorphic clastic rock type gold deposit） account for a large proportion. Therefore carrying on the fine disseminated type gold deposit and the ore prospecting research has important practical significance. In Guangnan gold mine in 1 ： 10 000 Doo soil geochemical survey （referred to as geochemical）, through this work, to understand the sensing area is dominated by Au, As, Sb, Hg, Ag soil geochemical backgrotmd, determining the geochemical anomaly delineation of lower Au, As, Sb, Ag, Hg, geochemical （secondary halo according to the abnormal）, according to size, concentration and five element set （combination） of a combination of factors, the comprehensive geophysical and geochemical anomaly evaluation and grading sequence, combined with geological brief measurement geological data integrated analysis, discriminant with potential prospecting value anomaly area, in order to further exploration target area.