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. 209 7, W- = -0. 748 1) being the maximum among the three and the rest lineament and lithology have (W = 0. 742 4, W- = -0. 449 6), (W = 0. 378 7,W- = -0. 624 3) respectively. The application was successful since the predicted results covers about 70% of the known deposits and predicted unknown areas.