Located along the Au-Pb-Zn-Cu-Fe-P-barite-coal-coal bedgas metallogenic belt in Qujing-Shilin fold thrust zone, the Daibu Town-Deze Town area of Yunnan Province is an important phosphorus, lead and zinc ore concentration area in Southwest China. Based on stream sediment geochemical Survey at the scale of 1∶50 000 in the Daibu Town-Deze Town area, the authors made comparison and analysis of geochemical characteristics of different formations, with the purpose of confirming the enrichment and dilution regularity and assemblage characteristics of regional elements. The study focused on the Xiaomiga No. HS-23-A1 geochemical anomaly of P-Pb-Zn-Mo and Tengziwa-Reshuicun No.HS-24-A1 geochemical anomaly of Pb-Zn-Au, and found the following phenomena: the HS-23-A1 anomaly is induced by the ore-hosting horizon of third member of Lower Cambrian Dengying Formation and Cambrian Qiongzhushi Formation;the HS-24-A1 anomaly is caused by lead-zinc veinlet,whereasthe Au anomaly is due to the secondary enrichment in the weathering crust.The Xiaomiga No. HS-23-A1 geochemical anomaly serves as a good prospecting target for deep orebodies.Two phosphorus orebodies were delineated, but the Tengziwa-Reshuicun No.HS-24-A1 geochemical anomaly of Pb-Zn-Au is relatively not ideal.Finally, the authors summarized the prospecting indicators of phosphate and lead-zinc deposits. The results obtained by the authors lay a foundation for further prospecting work.
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