文章摘要
丁兆举.热带雨林景观土壤测量采样深度与样品粒级试验研究——以加纳国雅卡锰金矿为例[J].地质与勘探,2021,57(3):554-562
热带雨林景观土壤测量采样深度与样品粒级试验研究——以加纳国雅卡锰金矿为例
Experimental study on sampling depth and sample granularity of soil survey in tropical rainforest landscape: Taken the Yakau Mn-Au deposit in Ghana as an example
投稿时间:2020-07-13  修订日期:2021-03-26
DOI:10.12134/j.dzykt.2021.03.008
中文关键词: 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
英文关键词: Mn-Au polymetallic deposit, geochemical soil survey, sampling depth, sample granularity, adaptability, effectiveness, Yakau, Ghana
基金项目:
作者单位E-mail
丁兆举 中国冶金地质总局西北地质勘查院陕西西安 463330438@qq.com 
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中文摘要:
      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。
英文摘要:
      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.
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