Stable isotopic composition of the hydrothermal fluids responsible for the Nanisivik ZnPb deposits, Northwest Territories, Canada

Direct measurements of °18O and δD of water in inclusion fluids in sulfide and carbonate gangue minerals from the Nanisivik deposit are used to place constraints on the origin of the fluids responsible for hydrothermal mineralization. Values of δD of inclusion fluids in sphalerite and dolomite are near −50%, whereas those of inclusion fluids in two galena samples are much lower at −72 ± 3‰; δ18O of inclusion fluids in sphalerite are −2.5 ± 3‰; …