Please cite this article as: Tardani, D., Reich, M., Deditius, A.P., Chryssoulis, S., Sánchez-Alfaro, P., Wrage, J., Roberts, M.P., Copper-arsenic decoupling in an active geothermal system: a link between pyrite and fluid composition, Geochimica et Cosmochimica Acta (2017), doi: http://dx.doi.org/10. 1016/j.gca.2017.01.044 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. and propylitic (650 to 1000 m) alteration zones of the geothermal system. We show that 43 the concentrations of precious metals (e.g., Au, Ag), metalloids (e.g., As, Sb, Se, Te), 44 and base and heavy metals (e.g., Cu, Co, Ni, Pb) in pyrite at the TGS are significant.
Final (revised) version submitted to Geochimica
45Among the elements analyzed, As and Cu are the most abundant with concentrations 46 that vary from sub-ppm levels to a few wt. % (i.e., up to ~5 wt. % As, ~1.5 wt. % Cu).
47Detailed wavelength-dispersive spectrometry (WDS) X-ray maps and SIMS depth vs.
