Granite-related Au deposits associated with Sn-W provinces have been the subject of extensive debate over the past five years, since Thompson et al. (1999) defined their broad characteristics. The majority of these arguments have centered upon comparisons between granite-related Au deposits and orogenic Au deposits, and in particular, on how the deposits differ (e.g., Sillitoe and Thompson, 1998; Groves et al., 2003). This discussion is ongoing but there is a growing body of evidence that many of these Au deposits, particularly those with a strong Au-Bi association (herein described as granite-related Au-Bi deposits), are indeed magmatic in origin....

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