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TitrePreliminary geochemical characterization of the Central Mineral Belt uranium geochemistry database
TéléchargerTéléchargement (publication entière)
AuteurAcosta-Góngora, P; Potter, E G
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 2; par Rogers, N (éd.); Commission géologique du Canada, Dossier public 8373, 2018 p. 57-63, https://doi.org/10.4095/306601
Année2018
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/306601
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
ProvinceTerre-Neuve-et-Labrador
SNRC13E/15; 13E/16; 13F/13; 13F/14; 13F/15; 13F/16; 13G/13; 13G/14; 13G/15; 13J/02; 13J/03; 13J/04; 13J/05; 13J/06; 13J/07; 13J/10; 13J/11; 13J/12; 13J/13; 13J/14; 13J/15; 13K; 13L/01; 13L/02; 13L/07; 13L/08; 13L/09; 13L/10; 13L/15; 13L/16; 13M/01; 13M/02; 13M/07; 13M/08; 13M/09; 13M/10; 13N/01; 13N/02; 13N/03; 13N/04; 13N/05; 13N/06; 13N/07; 13N/08; 13N/09; 13N/10; 13N/11; 13N/12; 13O/02; 13O/03; 13O/04; 13O/05; 13O/06; 13O/07; 13O/10; 13O/11; 13O/12
Lat/Long OENS -62.7500 -58.9500 55.7500 53.8333
Sujetsgisements minéraux; gîtes minéralogiques; uranium; cuivre; molybdène; vanadium; oxydes de fer; or; métaux de base; genèse des minerais; minéralisation; altération; analyses statistiques; analyses des éléments majeurs; Archéen; Ceinture de Central Mineral ; Province de Nain ; Groupe de Moran Lake ; Groupe de Moran Lake ; Groupe de Bruce River ; Base de données; géologie économique; géochimie; Précambrien; Protérozoïque
Illustrationslocation maps; geoscientific sketch maps; pie charts; plots; bar graphs
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)
Preliminary geochemical characterization of the U±Cu±Mo±V mineralization in the Central Mineral Belt (CMB) of Labrador is developed based on data compiled within the recently published Central Mineral Belt uranium geochemistry database. The highest uranium concentrations are found in the Jacques Lake (up to 11 weight % U) and Michel-in (up to 2 weight % U) areas, whereas copper and molybdenum concentrations are the highest in the Moran Lake (up to 1.6 weight % Cu) and Jacques (up to 1 weight % Mo) and Anna Lake (up to 0.3 weight % Mo) areas, respectively. Sodic alteration is the most common alkali alteration type in the CMB, with the emplacement of iron oxides mainly decoupled from potassium. Uranium-rich samples also plot within the 'least altered' field in the alteration type discriminant diagram. However, this might be an artefact of distinct alteration type overlaps, which may shift the major element composition of the mineralized rocks towards the least altered field. The lack of association of uranium and other base metals with alkali elements is further recognized by principal component analysis. However, additional statistical evaluation focused on the individual alteration types and categorized by the geographical areas within the CMB is necessary to better understand the mobility of uranium and base metal elements, along with their association with alteration facies.
GEOSCAN ID306601