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TitrePrecambrian lode gold deposits - a summary of TGI-4 contributions to the understanding of lode gold deposits, with an emphasis on implications for exploration
TéléchargerTéléchargement (publication entière)
AuteurDubé, B; Mercier-Langevin, P; Castonguay, S; McNicoll, V J; Bleeker, W; Lawley, C J M; De Souza, S; Jackson, S E; Dupuis, C; Gao, J -F; Bécu, V; Pilote, P; Goutier, J; Beakhouse, G P; Yergeau, D; Oswald, W; Janvier, V; Fontaine, A; Pelletier, M; Beauchamp, A -M; Malo, M; Katz, L R; Kontak, D J; Tóth, Z; Lafrance, B; Gourcerol, B; Thurston, P C; Creaser, R A; Enkin, R J; El Goumi, N; Grunsky, E C; Schneider, D A; Kelly, C J; Lauzière, K
SourceTargeted Geoscience Initiative 4: Contributions to the understanding of Precambrian lode gold deposits and implications for exploration; par Dubé, B (éd.); Mercier-Langevin, P (éd.); Commission géologique du Canada, Dossier public 7852, 2015 p. 1-24, https://doi.org/10.4095/296625
Année2015
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/296625
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Dubé, B; Mercier-Langevin, P; (2015). Targeted Geoscience Initiative 4: Contributions to the understanding of Precambrian lode gold deposits and implications for exploration, Commission géologique du Canada, Dossier public 7852
Formatspdf
ProvinceNunavut; Colombie-Britannique; Alberta; Saskatchewan; Manitoba; Ontario; Québec; Nouveau-Brunswick; Nouvelle-Écosse; Île-du-Prince-Édouard; Terre-Neuve-et-Labrador; Territoires du Nord-Ouest; Yukon; Nunavut
SNRC1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long OENS-180.0000 180.0000 90.0000 -90.0000
Sujetsgisements minéraux hydrothermaux; altération hydrothermale; altération; sulfures; gîtes sulfureux; arsénopyrite; formations ferrifères; or; gisements minéraux; gîtes minéralogiques; Archéen; minéralisation; ceintures de roche verte; analyses structurales; caractéristiques structurales; failles; failles, extension; failles, chevauchement; magmatisme; exploration; métallogénie; genèse des minerais; zones de failles; gîtes volcanogènes; trous de mine; levés gravimétriques; interprétations de la pesanteur; fer; formation de fer d'Algoman; gîtes d'Algoman; analyses géochimiques; interprétations géochimiques; déformation; métamorphisme; terres rares; géochimie des terres rares; analyses de la roche, éléments de terres rares; milieu sédimentaire; analyses sédimentaires; interpretations structurelles; évolution tectonique; roches sédimentaires métamorphosées; roches ignées; roches volcaniques; volcanoclastique; rhyolites; filons rocheux; plis; potentiel minier; genèse des gîtes minéraux; pétrophysique; interprétations magnétiques; propriétés électriques; analyse par spectromètre de masse; pyrite; argent; cuivre; zinc; plomb; lithogéochimie; géologie du substratum rocheux; datations au uranium-plomb; métaux de base; gisements de métaux de base; tonalites; interprétations tectoniques; cadre tectonique; turbidites; analyses spectrométriques; géochimie des roches totales; méthodes analytiques; méthodes d'exploration; Province de Churchill ; Ceinture de Beardmore-geraldton ; Subprovince de Wabigoon ; Ceinture d'Abitibi Greenstone ; Ceinture de Swayze Greenstone ; Camp minier de Doyon-bousquet-laronde; Dépôt de Westwood ; Formation de Bousquet ; Subprovince de La Grande ; Province de Superior ; géochimie; minéralogie; géologie économique; géologie structurale; tectonique; géophysique; stratigraphie; géochronologie; Précambrien; Protérozoïque
Illustrationslocation maps; cross-sections; flow charts; plots; tables
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeÉtude des gîtes d'or, Initiative géoscientifique ciblée (IGC-4)
Diffusé2015 06 11
Résumé(disponible en anglais seulement)
The TGI-4 Lode Gold project, which comprises numerous site-specific and thematic research activities, covers the entire spectrum of crustal settings for lode gold deposits, from orogenic banded iron formationhosted and greenstone-hosted quartz carbonate vein-type gold deposits formed deep in the crust (>5 km), to intrusion-related deposits that are formed at shallower crustal levels (~2-5 km), and to deposits formed at or near the seafloor. Herein we synthesize a number of important project contributions that have significant implications for on-going mineral exploration for hidden deposits. Among the key findings is a newly established link between major faults, their early evolution, syntectonic magmatism and synorogenic sedimentary basin evolution, and gold metallogenesis in various greenstone belts. The revised model incorporates a phase of tectonic extension-a distinct feature recognized in gold-rich settings worldwide-that is applicable to mineral exploration targeting across the Canadian Shield. Importantly, the simultaneous multidisciplinary study of a number of large banded iron formation-hosted gold deposits and districts allows for the development of a unifying genetic model for such deposits that integrates critical structural, stratigraphic, hydrothermal, and metamorphic elements. Several key features that are common to all of the studied deposits, but elements specific to dominantly banded iron formation-hosted gold deposits or to deposits that are only partly hosted in banded iron formation, were also established. The Lode Gold project also bridges a major knowledge gap by characterizing a spectrum of "unusual" or "atypical" gold deposits in the Superior Province. The new and revised models incorporate synvolcanic as well as pre-deformation and synorogenic synmagmatic or intrusion-related gold deposits that represent a large part of the newly discovered resources in the Canadian Shield in both "brownfield" and "greenfield" exploration environments.
GEOSCAN ID296625