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Depression of Lead-activated Sphalerite by Sodium Hydrogen Phosphate for Red Dog Mine Operation
DownloadSpring 2019
The inadvertent activation of sphalerite by lead ions have been noticed and studied for decades. In this study, flotation behavior of sphalerite upon lead activation was studied. Sodium hydrogen phosphate was applied as a main depressant to test its effect on improving Pb-Zn selectivity. Surface...
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Lithophile and Chalcophile Elements in Sphalerite from the Anarraaq Sediment-Hosted Zn-Pb-Ag Deposit, Red Dog District, Alaska
DownloadFall 2017
The age of many sedimentary hosted base metal deposits has been a topic of debate for several decades, due to a lack of minerals ideal for geochronological age in these systems. One technique is focused on dating the ore minerals (sphalerite) directly with the Rb-Sr method. The main issue with...
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The genesis of the Gayna River carbonate-hosted Zn-Pb deposit
Fall 2009
Geochemical analyses on samples from the Mississippi Valley Type Gayna River deposit, Northwest Territories, Canada, have resulted in the definition of three ore stages and a deposit genesis model. Pb/Pb and Re/Os isotopic analyses indicate that the mineralization at Gayna River was emplaced...
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The paragenesis and geochemistry of the Bellekeno Ag-Pb-Zn vein, Keno Hill district, Yukon, Canada
DownloadFall 2013
The Keno Hill district Ag-Pb-Zn deposit occurs within the Tombstone-Tungsten Belt, Yukon. Vein mineralization, dominated by siderite, sphalerite, and galena, is spatially associated with, but paragenetically later than, intrusion-related gold mineralization. A direct genetic link between the Keno...