Abstract
The Meadowbank Gold Project of Cumberland Resources Limited is located 70 km north of Baker Lake in the arid, arctic environment of Nunavut Territory, Canada. With a site annual average temperature of -11C, and 310 mm/year precipitation, the extrapolation of constituent loading rates from laboratory tests is particularly precarious. Three different scales of kinetic leaching tests were performed on waste rock samples: 1-kg and 100-kg laboratory leaching cells and 250-kg field cell tests. Field tests yielded considerably slower rates of buffering capacity depletion and sulfide oxidation than laboratory-derived rates, although the differences were not consistent between the various test scales. Additional
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