地球化学分区方法在地球化学勘查中的应用——以胶东半岛乳山寨幅1∶5万水系沉积物测量为例

Application of Geochemical Zoning Method in Geochemical Exploration——Taking the Measurement of Water System Sediments with the Scale of 1∶50000 in Rushanzhai in Jiaodong Peninsula as an Example

摘要:

以胶东半岛乳山寨幅1∶5万水系沉积物测量为例，利用化探数据进行因子分区讨论，得到7个地球化学分区，分别为：Au、As、W地球化学分区,Pb、Ag、Zn地球化学分区,Bi、Sb地球化学分区,Ni、Cu地球化学分区,Sn地球化学分区,Mo地球化学分区,Hg地球化学分区。结合圈定的金综合异常，在Au、As、W地球化学分区内，发现金矿化点2处。结果表明，分区与化探成矿信息的对应关系较好，可以达到缩小找矿靶区，指导找矿工作方向的目的。

Abstract:

Taking the drainage sediment survey with the scale of 1∶50000 in Ruzhai area in Jiaodong Peninsula as an example, by using geochemical exploration data, the factor zoning has been discussed. 7 geochemical zones have been obtained, they are Au, As, W geochemical zoning; Pb, Ag, Zn geochemical zoning; Bi, Sb geochemical zoning; Ni, Cu geochemical zoning; Sn geochemical zoning; Mo geochemical zoning; Hg geochemical zoning. Combining with the delineated gold synthetical anomaly, two gold mineralization spots have been found in Au, As, W geochemical zone. It is showed that the corresponding relationship between the zoning and geochemical and metallogenic information is good. It can achieve the purpose of reducing the prospecting target area and guiding the prospecting direction.