摘要
加纳国雅卡锰金矿床位于著名的阿散蒂金矿带上。在该成矿带进行土壤测量采样深度、样品粒级试验以及方法技术的适应性和有效性研究,可为下一步开展大面积土壤地球化学测量提供技术依据,从而圈定可靠土壤地球化学异常。本文采用的工作方法为土壤垂向剖面法,选择有代表性的地段进行试验研究,结果显示在已知矿上方获得了明显的土壤地球化学异常。通过实验研究,选取土壤测量采样深度60~80 cm,截取样品粒级-4~+20目,获得了可靠、明显的土壤地球化学异常。研究证明该方法具有显著的地球化学找矿效果。
The Yakau Mn-Au deposit is located in the important Ashanti metallogenic belt in Ghana.In this metallogenic belt,experimental study on sampling depth,sample granularity of soil survey and its adaptability and effectiveness can provide technical basis for the next large-scale soil geochemical survey,so as to delineate reliable soil geochemical anomalies.This work used the method of vertical soil profile,and selected some representative sections for experimental study.The results show that obvious soil geochemical anomalies are obtained above the known mines.Through the experimental study,the sampling depth of soil measurement is 60~80 cm,and the sample size is-4~+20 mesh.Reliable and obvious soil geochemical anomalies are obtained.It is proved that this method has remarkable geochemical prospecting effect.
作者
丁兆举
常昊
张年生
尉青
DING Zhaoju;CHANG Hao;ZHANG Niansheng;YU Qing(Northwest Geological Exploration Institute of China Metallurgical Geology Bureau,Xi'an,Shaanxi 710119)
出处
《地质与勘探》
CAS
CSCD
北大核心
2021年第3期554-562,共9页
Geology and Exploration
关键词
锰金多金属
土壤地球化学测量
采样深度
样品粒级
适应性
有效性
雅卡
加纳
Mn-Au polymetallic deposit
geochemical soil survey
sampling depth
sample granularity
adaptability
effectiveness
Yakau
Ghana
作者简介
第一作者:丁兆举(1963年-),男,1985年毕业于长春工程学院化探专业,工程师,长期从事地球化学勘查与研究工作。E-mail:463330438@qq.com。
