Significance of Alteration Assemblages for the Origin andEvolution of the Proterozoic Nabarlek Unconformity-Related Uranium Deposit,Northern Territory, Australia

Nanoscale relationships between uranium and carbonaceous material in alteration halos around unconformity-related uranium deposits of the Kiggavik camp, Paleoproterozoic Thelon Basin, Nunavut, Canada

“…During the alteration at Kiggavik, quartz was dissolved and all primary metamorphic silicate minerals (feldspars, muscovite, biotite, chlorite) were replaced by mainly illite and sudoite (Al-Mg di-trioctahedral chlorite) in various proportions. This alteration paragenesis is similar to that of many other Proterozoic unconformity-associated U deposits in Canada and Australia (Beaufort et al 2005;Laverret et al 2006;Hoeve and Quirt 1984;Polito et al 2004;Riegler et al 2014). …”

3-D hydromechanical simulation of intersecting faults: Influences on fluid circulation and formation of oriented-orebodies

“…The formation of mineral deposits requires a large amount of fluid to be circulated between the source and depositional sites (e.g., Fayek and Keyser, 1997;Alexandre et al, 2009;Aquilina et al, 2011). In structurallycontrolled mineral deposits, faults and associated fractures (damage zone) are advocated as being favorable fluid pathways particularly in intrinsically low-permeability environments (Polito et al, 2004;Huston et al, 2010). Therefore, the circulation of fluids through activated fault zones remains of broad interest to a variety of different mineral commodities (e.g., Sibson, 1995;Kyser et al, 2000;Ford et al, 2009;Cui et al, 2012;Power et al, 2012;Wilkinson, 2014;Emsbo et al, 2016;Li et al, 2018;Eldursi et al, 2021a).…”