Dynamics of Cu isotope fractionation during the reactions of pyrite with Cu(I)-bearing hydrothermal fluids

• Published in: Geochimica et cosmochimica acta Vol. 383; pp. 43 - 56
• Main Authors: Zhang, Yang, Li, Weiqiang, Brzozowski, Matthew J.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.10.2024
• Subjects: Chalcopyrite; Copper isotope; Diffusion; Mineral replacement; Pyrite; Redox reaction; Chalcopyrite; Pyrite; Mineral replacement; Diffusion; Copper isotope; Redox reaction
• ISSN: 0016-7037
• DOI: 10.1016/j.gca.2024.08.001

Experimental investigation of the fractionation behavior of Cu isotopes during the replacement of pyrite by Cu-bearing sulfides (chalcopyrite, bornite, and chalcocite) was conducted under hydrothermal conditions. At the initial stages of the replacement reaction, small mounds of product formed on th...