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Emerging Environmental Geochemical Challenges for Future Mining - Geochemical Risks of Large Volume Mine Waste

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This task will investigate geochemical risks to sediment posed mill tailings in the context of a hypothetical tailing dam failure. We will investigate

on representative samples of mill tailings from deposit types that typically have large tonnage and lower grades, such as porphyry deposits, that will likely be the targets of future mining. In fact, copper- and nickel-rich tailings will be a priority because of the continued importance of large tonnage porphyry copper deposits globally, and the emerging importance of large tonnage copper-nickel-PGM deposits in the Duluth Complex, Minnesota

Task Chief: Robert Seal, rseal@usgs.gov, 703-648-6290

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Last Modified: 18 January 2018