云南西邑隐伏铅锌矿地电化学异常特征及找矿预测

发布时间：2018-10-15 08:23

【摘要】：为了在云南西邑铅锌矿区外围和深部寻找隐伏铅锌矿,在董家寨矿段开展了地电化学法找矿研究,对铅锌矿石进行了电化学溶解并在已知矿体上开展了地电化学法找矿可行性试验。结果表明:外加电场作用不仅会使铅锌矿发生电化学溶解,同时地电化学法也可将溶解出来的Pb、Zn等成矿离子提取;已知矿体上方同步出现了Pb、Zn、Ge、Ag异常,地电提取的异常值大小为PbZnGeAg,为典型的喷流热水沉积富锗银铅锌矿的地球化学标志;在此基础上,利用地电化学法在西邑董家寨未知区开展了找矿预测,共圈定了5个综合异常区,其中Ⅰ类异常区2个、Ⅱ类异常区2个、Ⅲ类异常区1个,为下一步勘查找矿工作奠定了基础。
[Abstract]:In order to find concealed lead-zinc deposits in the periphery and deep of Xiyi lead-zinc mine in Yunnan Province, geoelectrochemical prospecting was carried out in the Dongjiazhai section. The electrochemical dissolution of lead and zinc ore was carried out and the feasibility test of geoelectrochemical prospecting was carried out on known ore bodies. The results show that the applied electric field can not only cause the electrochemical dissolution of lead-zinc ore, but also extract the dissolved Pb,Zn and other ore-forming ions by geoelectrochemical method. The anomalous value of geo-electric extraction is PbZnGeAg, which is a typical geochemical marker of germanium rich silver-lead-zinc deposit deposited by hot water, on the basis of which, the geoelectrochemical method is used to carry out the prospecting prediction in the unknown area of Dongjiazhai, Xiyi. A total of 5 synthetic anomaly areas have been delineated, of which 2 are type 鈪，

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