陕西旬阳落驾河地区土壤地球化学特征及找矿预测

Soil Geochemical Characteristics and Ore Prospecting Prediction in Luojiahe Area,Xunyang,Shaanxi Province

为寻找矿化线索,优选成矿有利地段,在旬阳落驾河地区开展了1∶2.5万土壤地球化学测量。通过元素含量统计分析、异常特征评价解释、地化剖面测量和槽探等方法查明验证土壤地球化学特征及异常,开展矿产资源远景区预测。结果表明:区内Au、As、Sb、Hg较易于富集成矿;Au与As、Sb、Hg相关性较好,Cu与Zn、Pb、Bi相关性较好;HS5为Au、Hg、Sb矿致异常,HS24为Au、Ag矿致异常;后通过探槽工程初步圈定2个矿体,进而划定了2处首要成矿预测区。

In order to search for mineralization clues and optimize favorable mineralization areas,a 1∶25000 soil geochemical survey was conducted in the Luojiahe area of Xunyang.Identify and verify soil geochemical characteristics and anomalies through methods such as element content statistical analysis,abnormal feature evaluation and interpretation,geochemical profile measurement,and trenching,conducting prospective area prediction of mineral resources.The results indicate that Au,As,Sb,and Hg are more easily enriched and mineralized in the area.Au has a good correlation with As,Sb,and Hg,while Cu has a good correlation with Zn,Pb,and Bi.HS5 represents Au,Hg,Sb mineral induced anomalies,while HS24 represents Au,Ag mineral induced anomalies.After that,two ore bodies were initially delineated through the exploration trough trench exploration engineering,and then two primary metallogenic prediction areas were delineated for prospecting targets in Luojiahe area.