| 水电化学方法寻找运积物覆盖区的金矿床 |
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| 引用本文： | 伍宗华,金仰芬,黄宏库.水电化学方法寻找运积物覆盖区的金矿床[J].物探与化探,1987,11(4):251-256. |
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| 作者姓名： | 伍宗华 金仰芬 黄宏库 |
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| 作者单位： | 地矿部物化探研究所
(伍宗华，金仰芬)，地矿部物化探研究所(黄宏库) |
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| 摘 要： | 应用水电化学方法在我国胶东西部金成矿区进行了首次试验.该方法是基于矿体周围离子晕的存在,在外电场作用下,离子晕中的金属离子向阴极聚集,并被选择吸附剂所吸附,然后根据吸附剂中金属离子的含量来评价其含矿远景.这次试验在已知金矿区发现了清晰的Au异常,并在矿区外围新发现了一些异常.对部分异常进行检查的结果表明,金异常主要与原生金矿化和砂金矿有关,并新发现了两处金矿点和一些有找矿意义的新异常,为该区的金矿普查提供了新的靶区.这种水电化学方法能最大限度地地集水中的金属离子,加大了地球化学勘查的有效深度,降低了对分析方法灵敏度的要求,能抑制水中金属离子因季节变化的影响,为隐伏砂金矿的普查提供了一种新的有效手段.
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THE PROSPECTING POR GOLD DEPOSITS IN AREAS COVERED BY TRANSPORTED OVERBURDEN USING HYDROELECTROCHEMICAL TECHNIQUE |
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| Institution: | Institute of Exploration Geophysics and Geochemistry, MGMR |
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| Abstract: | The hydroelectrochemical method was tentatively used for the first timein the Jincheng ore district in western part of east Shandong. This techniqueis based on the following principle: Around the orebody there exist an ionichalo; under the action of external electric field, metallic ions in the ionic halowill concentrate towards the cathode where they will be absorbed by selectiveadsorbents; the contents of metallic ions in adsorbents may therefore be usedto evaluate ore prospects.During the test, distinct gold anomalies were discovered in the gold oredistrict and some new anomalies were detected in the surrounding areas. Theexamination of a certain proportion of anomalies suggests that gold anomaliesare mainly related to primary gold mineralization and placer gold. In addition,two new gold occurrences and some new anomalies of ore-prospecting signific-ance were found, which provide new targets for gold-survey in this area.This hydroelectrochemical method might concentrate the metallic ions inwater to the maximum, extend the depth of geochemical expolration, lower therequirements for analytical sensitivity, check the seasonal variation of metallicions in water, and thus supply the survey of concealed placer ore depositswith a new effective means. |
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