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TitreLithological, hydrothermal, structural and metamorphic controls on the style, geometry and distribution of the auriferous zones at Amaruq, Churchill Province, Nunavut
TéléchargerTéléchargement (publication entière)
AuteurValette, M; De Souza, S; Mercier-Langevin, P; McNicoll, V J; Grondin-LeBlanc, P; Côté-Mantha, O; Simard, M; Malo, M
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 1; par Rogers, N (éd.); Commission géologique du Canada, Dossier public 8358, 2018 p. 153-156, https://doi.org/10.4095/306467
Année2018
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/306467
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Rogers, N; (2018). Targeted Geoscience Initiative: 2017 report of activities, volume 1, Commission géologique du Canada, Dossier public 8358
Formatspdf
ProvinceNunavut
SNRC45M; 46D; 46E; 46L; 46M; 47D; 55; 56; 57A; 57B; 65; 66A; 66B; 66C; 66F; 66G; 66H; 66I; 66J; 66K; 66N; 66O; 66P; 67A
Lat/Long OENS-104.0000 -86.0000 68.5000 60.0000
Sujetsgisements minéraux; prospection minière; potentiel minier; or; genèse des minerais; minéralisation; contrôles des minerais; contrôles structuraux; gîtes de substitution; gîtes stratoïdes; analyses géométriques; cadre tectonique; système hydrothermal; métamorphisme; déformation; clivage; schistosité; crenulation; altération; intrusions; filons; géologie du substratum rocheux; caractéristiques structurales; zones de cisaillement; pieces structuraux; failles; plis; lithologie; roches ignées; roches intrusives; carbonates; quartz; roches volcaniques; couches volcano-sédimentaires; roches sédimentaires; formations ferrifères; chailles; silicates; roches ultramafiques; roches mafiques; pyrrhotite; arsénopyrite; loellingite; méthodes de fluorescence aux rayons x; Archéen; Bouclier Canadien; Province de Churchill ; Groupe de Woodburn Lake ; Domaine de Rae ; Domaine d'Hearne ; géologie économique; tectonique; géologie structurale; géochimie; Précambrien; Protérozoïque
Illustrationsgeoscientific sketch maps; photographs
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeGestion de la connaissance de IGC, Initiative géoscientifique ciblée (IGC-5)
ProgrammeSystèmes aurifères, Initiative géoscientifique ciblée (IGC-5)
Diffusé2018 01 19
Résumé(disponible en anglais seulement)
The Amaruq gold project is part of the Woodburn Lake group of the Rae Domain, in the western Churchill Province. Exploration for BIF-hosted gold deposits in this region has led to an emerging gold district, which comprises the Meliadine, Meadowbank and Amaruq deposits. In the Amaruq area, the Woodburn Lake group comprises a 250 m thick Neoarchean volcano-sedimentary sequence intercalated with chert and silicate facies iron formations. The two main ore zones (i.e. Whale Tail and IVR) exhibit different ore and alterations styles related to distinct geochemical and structural traps. The Whale Tail zone is primarily characterized by stratabound pyrrhotite-arsenopyrite-loellingite-gold replacement type mineralization in chert and iron formation. The ore zones at IVR consist of gold-bearing quartz-carbonate veins developed at, or near contacts between favourable units or reverse fold fault zones. In both ore zones, the geometry and style of the ore are controlled by at least the two Paleoproterozoic phases of deformation, and crosscutting relationships between folded sedimentary rocks and quartz-carbonate veins indicate protracted hydrothermal activity.
GEOSCAN ID306467