EPMA Characterization of Gold Associated with Different Sulfide Textures at the Monument Bay Deposit, Manitoba, Canada

Abstract

The growth history of pyrite can preserve changes in auriferous fluid chemistry in its distribution of trace elements across a wide range of temperature conditions. Moreover, sulfide geochemistry can be used as an effective proxy for fluid history as information recorded by different fluid events can be inferred through observation of different generations of pyrite growth [2]. In addition, quantitative Au/Ag ratios can provide complementary information about the composition of gold grains. Understanding associations of other trace elements with gold in sulfides and the composition of gold grains can aid in differentiating mineralizing events with implications for improving exploration and geometallurgy at the Monument Bay deposit.