滇西东山铅锌矿床地气与土壤地球化学特征

根据东山矿区56线、0线、39线地气与土壤地球化学特征，研究区普遍存在Pb、Zn、Cu、Au异常，其中Pb、Zn异常最为明显。在已探明矿体展布区域，Pb、Zn地气与土壤异常重叠性较好，Cu、Au异常明显但具有一定的差异，同时伴随有一定的As、La、Sr等元素组合异常。在未探明矿体存在区域的北西端F₁₈断层展布区域，Pb、Zn地气明显，土壤异常虽然较弱，但是与无异常区域区别明显，可能是受地表覆盖程度较厚的影响所致，同时亦伴随有不同程度的Cu、Au异常，另外伴随有一定的As、Sb、Bi等元素组合异常。分析表明，地气与土壤异常套合较好，在已探明矿体展布区域深部具有寻找铜或者铜铅锌矿体的较大潜力，在其北西端F₁₈断层展布区域具有寻找铅锌铜金矿的较大潜力。

The Geogas and Soil Geochemical Characteristics of Pb-Zn Deposit in

College of Nuclear Technology and Automation Engineering，Chendu University of Technology Based on geogas and soil characteristics of No56，0，39 exploration line，there generally exists the anomaly of Pb，Zn，Cu，Au in the area，among which Pb，Zn anomaly are the most obviousThe geogas and soil anomaly of Pb，Zn overlapped well in the area which the ore has founded，anomaly of Cu，Au is also obvious but with some differences，and accompanied by anomaly of As，La，Sr，etalThe distribution area of the No18 fault which the ore has not found，shows that the geogas anomaly of Pb，Zn is obviousAlthough the soil anomaly is weak，but there is obvious difference with the abnormal area，it may be due to the thicker degree of surface coverage，and accompanied by varying degree of Cu，Au anomaly and also a certain As，Sb，Bi anomalyThe analysis shows that geogas and soil anomaly are in well overlapThere has great potential to seek for copper or copper-lead-zinc ores in the distribution area found，and also has great potential to seek for lead-zinc-copper gold deposit in the North West of the No.18 fault zone.