Pb, Zn geochemical anomalies were delineated on the basis of 1∶50 000 stream sediment survey.

Nevertheless, from the distribution characteristics of the anomalies and field sampling conditions, the

authors found that some of the anomalies lie over Pb, Zn smelting ruins produced by local smelting, thus

being false anomalies. These false anomalies cause some difficulty in further geochemical anomaly

inspection. Based on anomaly characteristics as well as geological and remote sensing data, the authors

have distinguished false anomalies from real ones, thus providing a theoretical basis for further

exploration arrangement.