I've been marking honours exercises recently and as a result I've developed a temporary interest in the Sudbury Igneous complex. This mineralised region is the result of a meteorite impact. The impact shattered the country rock and the super high temperatures melted the sulphides. These then settled around the breccia creating banded massive sulphides. It's much more complex than that, but I haven't examined this case study all that deeply. I'd like to fix that though... this would make a lovely couple of weeks camping trip. I wonder if we could finagle a mine visit or three.
A well studied area due to to mineralisation - every one likes a geological map. Image hosted by the University of Western Ontario 
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