Abstract: The copper polymetallic ore spot that has been newly discovered in Jiangma-Saideng district is located in the west of the Bangong Co-Nujiang metallogenic belt.The Saideng copper ore spot,Jiangma copper-gold ore spot and Jiangma south copper-silver ore spot are found in Jiama-Saideng area by conducting the mineral resources survey work.In order to discuss the prospecting potential,firstly,the regional metallogenic background of Jiangma-Saideng area is analyzed systematically;then,the geological characteristics of the deposits of Jiangma-Saideng copper polymetallic ore spots are summarized from the aspects of morphology characteristics and occurrence characteristics of the ore-bodies,mineral assemblage characteristics,ore texture and ore structure,ore-controlling factors,wall rock alteration;finally,the metallogenic mechanism of Jiangma-Saideng copper polymetallic ore spots is discussed,the deposit model is established preliminary,the prospecting indicators are summarized from the aspects of stratum,rock mass,structure and alteration,based on the above analysis results,the prospecting potential of Jiangma-Saideng area is studied in depth.The analysis results show that:①the copper polymetallic mineralization of Jiangma-Saideng area is controlled obviously by the Qushengla formation stratum,the altered andesite is closely related to mineralization;②Saideng copper mineralization bodies are occurred along the stratum altered fracture zones which orientation is NW-SE,Jiangma south copper-silver minalization bodies are controlled by volcanic mechanism;③Jiangma copper-gold mineralization bodies are occurred in the altered andesite and quartz diorite porphyrite;④the denudation degree Jiangma-Saideng copper polymetallic ore spots is low,and the deposits are carefully preserved,the prospecting potential of porphyry-epithermal deposits,the focus of the next prospecting work is the deep ore-bearing cryptoexplosive breccia and ore-bearing porphyrite that are covered by the surface andesite.

Key words: Regional geological background,Deposit geological characteristics,Metallogenic mechanism, Deposit model, Prospecting indicators, Prospecting potential