A regional S and Pb isotope study of carbonate hosted Zn-Pb mineralization, Mackenzie Mountains

• Main Authors: Gleeson, S., Sharp, R., Dewing, K., Krstic, D., Turner, E., Ootes, L.
• Format: Conference Object
• Language: unknown
• Published: 2007
• Subjects: Canada; Gayna River; Mackenzie mountains
• Online Access: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1943892

The carbonate strata of the Mackenzie Mountains of Northwestern Canada are host to a large number of mineralized base-metal occurrences, including the Neoproterozoic-hosted Gayna River deposit. Here, we present S and Pb isotopic data on sulphides and sulphates from Gayna River and 7 other smaller showings hosted by Lower Cambrian and Silurian-Ordovican units. The S isotope data suggest that the source of S in all the deposits is variable and may be derived locally. The Pb isotope data have consistent values for most of the showings suggesting a single Pb source for the mineralization. These data allow a model of a regional hydrothermal fluid flow event(s) in the Mackenzie Mountains in the Devonian-Carboniferous that deposited base metals in units of varying ages.