GEOSCAN, résultats de la recherche


TitreApplication of regional geochemical datasets to uranium exploration in the Athabasca Basin, Saskatchewan
TéléchargerTéléchargement (publication entière)
AuteurWright, D M; Potter, E G
SourceTargeted Geoscience Initiative 4: unconformity-related uranium systems; par Potter, E G (éd.); Wright, D M (éd.); Commission géologique du Canada, Dossier public 7791, 2015 p. 14-20, (Accès ouvert)
ÉditeurRessources naturelles Canada
Documentdossier public
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Potter, E G; Wright, D M; (2015). Targeted Geoscience Initiative 4: unconformity-related uranium systems, Commission géologique du Canada, Dossier public 7791
SNRC64E; 64L; 64M; 74F; 74G; 74H; 74I; 74J; 74K; 74N; 74O; 74P
Lat/Long OENS-112.0000 -102.0000 60.0000 57.0000
Sujetsgîte de type discordance; discordances; gisements d'uranium; uranium; gisements minéraux; gîtes minéralogiques; minéralisation; levés géochimiques; analyses géochimiques; rapports uranium-thorium; géochimie de l'yttrium; géochimie du lithium; Bassin d'Athabasca ; géologie économique; minéraux radioactifs; géochimie
Illustrationslocation maps; plots
ProgrammeÉtude des gîtes d'uranium, Initiative géoscientifique ciblée (IGC-4)
Diffusé2015 03 02 (08:30)
Résumé(disponible en anglais seulement)
Regional examination and integration of geochemical data with other components of the uranium exploration model can influence mineral exploration. This approach was applied to regional geochemical data for the Athabasca Basin, northern Saskatchewan, which is host to some of the world's most significant high-grade unconformity-associated uranium deposits. Composite geochemical features based on components of four lithogeochemical signatures highlight specific chemical- spatial relationships important to ongoing exploration for unconformity-associated uranium in the Athabasca Basin. Geospatial integration of these geochemical signatures with regional lineaments and the exploration model highlights that they: 1) correspond with known uranium occurrences and deposits; 2) occur in the exposed and near-surface rocks, including locations overlying ore at significant depths; and 3) correspond with lineament traces and highlight lineament intersections that are fertile for uranium enrichment. Geochemical Signature 1 illustrates uranium enrichment relative to thorium, emphasizing two distinct types of uranium anomalism. Geochemical Signature 2 illustrates yttrium enrichment relative to phosphorous, which reflects chemo-stratigraphic signatures in the upper Athabasca Group and also displays a spatial (and perhaps temporal) association with known zones of uranium mineralization. Geochemical Signatures 3 and 4, represented by magnesium behaviour relative to lithium, and copper behaviour relative to cobalt, respectively, provide further refinement of the proximal to distal alteration signatures around known deposits.