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High-precision Magnetic Survey in Puchiya Area of Xaitongmoin County,Tibet,and Oreprospect

XIA Xiang-biao,ZHENG Lai-lin,LI Jun-min,LI Zai-hui Chengdu Institute of Geology and Mineral Resources,Chengdu,Sichuan 610081  
Through 1:50000 high-precision magnetic survey performed in Puchiya area,the authors acquired a detailed understanding of the characteristics of the magnetic field.On the basis of a qualitative analysis of magnetic anomalies,11 potential anomaly areas for ore prospecting were recognized through screening.Meanwhile,1:50000 regional stream sediment survey shows that the main metallogenic elements are Cu,Pb and Zn.Qualitative analysis of magnetic anomalies of these metallic deposits can provide favorable evidence for ore-prospecting work at depth.In combination with geochemical anomalies,geological characteristics,optimized magnetic anomalies,three best magnetic anomaly districts were delineated through optimization,namely Zhanzanmubu-Kengmalejian high-intensity magnetic anomaly district,Seyao high-intensity magnetic anomaly district,and Yageruo weak-intensity magnetic anomaly district.Ore-prospecting orientations in these three districts are also indicated in this paper.
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