Isotopic tracers for sulfide formation applied to offset dykes of the Sudbury basin, Ontario

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The Sudbury Igneous Complex (SIC), known for its Cu-Ni-PGE ores, is an igneous complex formed from a partial melt of the crust as a result of an impact event ~1.85 billion years ago. Although Sudbury has seen active mining for over a century, important questions still remain about the formation of ore deposits within the complex. One being, what is the origin, history, and source of sulfide minerals within offset dikes found at the Sudbury Igneous Complex? Several of these dykes are currently explored by Wallbridge Mining Company Limited. Little is known so far about the conditions for sulfide migration from the main mass. Using stable Fe-Cu-Ni isotopes, we will identify the potential sources, oxidation states, hydrothermal history, and