Long-term release of sulfide oxidation products from old tailings impoundments Ptacek, C. J. ; Blowes, D. W. ; Jambor, J. L. ; Moncur, M. C. ; Gunsinger, M. R. Abstract Publication: Geochimica et Cosmochimica Acta Supplement Pub Date: July 2008 Bibcode: 2008GeCAS..72R.765P