We surveyed the Cu isotopic composition of primary minerals and stream water affected by acid mine drainage in a mineralized watershed located in southwestern Colorado, USA. The ?65Cu values (based on 65Cu/63Cu) of local enargite (?65Cu = -0.01 ± 0.10‰) and chalcopyrite (?65Cu = 0.16 ± 0.10‰) are within the general range of previously reported values for terrestrial primary Cu sulfides (-1
Revised: April 23, 2009 |
Published: March 1, 2009
Citation
Kimball B.E., R. Mathur, A. Dohnalkova, A.J. Wall, R.L. Runkel, and S.L. Brantley. 2009.Copper isotope fractionation in acid mine drainage.Geochimica et Cosmochimica Acta 73, no. 5:1247-1263.PNNL-SA-60635.