Geochemical Controls on Metal Concentrations in Mine Tailings that have Undergone 50 Years of Oxidation Ptacek, C. J. ; Moncur, M. ; McGregor, R. ; Blowes, D. W. Abstract Publication: Eleventh Annual V. M. Goldschmidt Conference Pub Date: May 2001 Bibcode: 2001eag..conf.3647P