Prediction of hydrothermal copper, gold, silver and lead-zinc in northwestern Yunnan using weight of evidence model

This paper discusses the application of the model in predicting for hydrothermal Cu, Ag, Au and Pb-Zn occurrences in northwestern Yunnan. Geochemical, lineament and lithology data were the selected recognition criteria. The mentioned criteria varied against 75 known hydrothermal occurrences; the geochemical data had a weight of (W⁺=1.2097,W^-=-0.7481) being the maximum among the three and the rest lineament and lithology have (W⁺=0.7424,W^-=-0.4496), (W⁺=0.3787,W^-=-0.6243) respectively. The application was successful since the predicted results covers about 70% of the known deposits and predicted unknown areas.