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TitreNew geochronological insights into the Taltson Domain of northern Alberta and Saskatchewan
TéléchargerTéléchargement (publication entière)
AuteurPowell, J W; Pana, D I; Card, C D; Potter, E G; Tschirhart, V; Joyce, N
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 2; par Rogers, N (éd.); Commission géologique du Canada, Dossier public 8373, 2018 p. 43-56, https://doi.org/10.4095/306600
Année2018
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/306600
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Rogers, N; (2018). Targeted Geoscience Initiative: 2017 report of activities, volume 2, Commission géologique du Canada, Dossier public 8373
Formatspdf
ProvinceAlberta; Saskatchewan
SNRC73C/13; 73C/14; 73C/15; 73C/16; 73D/14; 73D/15; 73D/16; 73E/01; 73E/02; 73E/03; 73E/06; 73E/07; 73E/08; 73E/09; 73E/10; 73E/11; 73E/14; 73E/15; 73E/16; 73F; 73K/01; 73K/02; 73K/03; 73K/04; 73L/01; 73L/02; 73L/03
Lat/Long OENS-111.2500 -108.0000 58.2500 56.8333
Sujetsgisements minéraux; prospection minière; potentiel minier; uranium; genèse des minerais; minéralisation; contrôles des minerais; déformation; antécédents tectoniques; antecedents thermiques; cristallisation; métamorphisme; recristallisation; mise en place; datation radiométrique; datation au uranium-plomb; datations au zircon; datation argon-argon; biotite; géologie du socle; lithologie; roches métamorphiques; orthogneiss; gneiss granitiques; mylonites; faciès à granulite; roches ignées; roches intrusives; pegmatites; granites; caractéristiques structurales; zones de cisaillement; corrélation; Archéen; Domaine de Taltson ; Bassin d'Athabasca ; Province de Rae ; Domaine de Clearwater ; Zone de Taltson Magmatic ; géologie économique; géochronologie; tectonique; Précambrien; Protérozoïque
Illustrationsgeoscientific sketch maps; photographs; photomicrographs; Concordia diagrams; bar graphs; tables
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeGestion de la connaissance de IGC, Initiative géoscientifique ciblée (IGC-5)
ProgrammeSystèmes d'uranium, Initiative géoscientifique ciblée (IGC-5)
Diffusé2018 03 01
Résumé(disponible en anglais seulement)
Recent discoveries of basement-hosted uranium deposits, such as those of the Patterson Lake corridor along the southwestern margin of the Athabasca Basin, have underscored the potential of high-strain corridors within the south-west Rae Province as major fluid conduits. Although these buried basement domains have often been defined using airborne geophysical data, the paucity of regional geochronological information makes it difficult to relate the geo-physical signatures to the regional tectonothermal history. This report presents new zircon U-Pb Sensitive High-Resolution Ion Microprobe and biotite 40Ar/39Ar geochronological data for six samples that span the Taltson Domain of the southwest Rae Province. Three orthogneiss and one pegmatite sample from the Marguerite River area of north-ern Alberta crystallized at ca. 1.97 Ga and intruded 2.1 to 2.7 Ga crust, and biotite from a mylonitic shear zone yielded a ca. 1.82 Ga 40Ar/39Ar cooling age. Zircon cores from a sample of granitic gneiss sampled along the Clearwater River in northern Saskatchewan returned an imprecise crystallization age of 2422 ± 28 Ma (MSWD = 1.4), whereas recrystallized rims record granulite-facies metamorphism at 1923.0 ± 7.3 Ma.
GEOSCAN ID306600