Fault Zone Evolution and Development of a Structural and Hydrological Barrier: The Quartz Breccia in the Kiggavik Area (Nunavut, Canada) and Its Control on Uranium Mineralization

• Published in: Minerals (Basel) Vol. 8; no. 8; pp. 319 - 346
• Main Authors: Grare, Alexis, Lacombe, Olivier, Mercadier, Julien, Benedicto, Antonio, Guilcher, Marie, Trave, Anna, Ledru, Patrick, Robbins, John
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.08.2018; MDPI
• Subjects: Breccia; Cathodoluminescence; Earth Sciences; Fault lines; Fault zones; Faults; Fluid flow; Fluids; Geochemistry; Geology; Geoquímica; hydraulic breccia; Hydrology; hydrothermal breccia; Hydrothermal deposits; Jaciments hidrotermals; Kiggavik; Microscopy; Mineralization; Mineralogy; Minerals d'urani; Orogeny; Precambrian; Quartz; Recrystallization; Rifting; Sciences of the Universe; Silicification; Silicon; structural control; Tectonics; Trace elements; Uranium; uranium deposits; Uranium ores; Vertical flow; Vertical mixing; Canada; Nunavut Territory Canada

In the Kiggavik area (Nunavut, Canada), major fault zones along, or close to, where uranium deposits are found are often associated with occurrence of thick quartz breccia (QB) bodies. These bodies formed in an early stage (~1750 Ma) of the long-lasting tectonic history of the Archean basement, and...