Scientists from the U.S. Geological Survey are evaluating the potential for undiscovered sulfide deposits containing varying amounts of nickel, copper, platinum-group metals, and cobalt in the Lake Superior region as part of an ongoing effort to assess the mineral potential of the United States. Similarities between rocks of the Midcontinent rift and rocks that host the Voisey Bay nickel-copper-cobalt deposit in Labrador, Canada, and the Noril'sk nickel-copper-platinum-group-metals deposits in Russia suggest a high potential for such sulfide deposits in rocks associated with the 1.1-billion-year-old Midcontinent rift in the Lake Superior region.
|Title||Potential for new nickel-copper sulfide deposits in the Lake Superior region|
|Authors||Klaus J. Schulz, William F. Cannon|
|Publication Subtype||USGS Unnumbered Series|
|Series Title||Information Handout|
|Record Source||USGS Publications Warehouse|