| Le Mignot, Elodie, Reisberg, Laurie, André-Mayer, Anne-Sylvie, Bourassa, Yan, Fontaine, Arnaud, Miller, John (2017) Re-Os Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton. Economic Geology, 112 (1) 145-168 doi:10.2113/econgeo.112.1.145 | Journal (article/letter/editorial) | Fontaine,1,4 and John Miller5 1 GeoRessources, 2 Centre Université de Lorraine-CNRS-CREGU, BP 70239, F-54506...constrain timing of gold events: Nassara and Kiaka in Burkina Faso and Wassa, Damang, and Obuasi in southern...mineralization was structurally characterized at each deposit, and dated by the Re-Os method on pyrite, arsenopyrite...early disseminated gold enrichment (1–3 g/t Au) at Kiaka, and gold hosted in folded and boudinaged quartz...These Re-Os ages on the early sulfides at Wassa and Kiaka are significant because they definitively provide |
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