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TitreIndicator mineral content and geochemistry of glacial sediments from northwest Alberta (NTS 84L, M): new opportunities for mineral exploration
TéléchargerTéléchargements
AuteurPlouffe, A; Paulen, R C; Smith, I R
SourceCommission géologique du Canada, Dossier public 5121, 2006, 29 pages; 1 CD-ROM, https://doi.org/10.4095/221825 (Accès ouvert)
LiensCanadian Database of Geochemical Surveys, downloadable files
LiensBanque de données de levés géochimiques du Canada, fichiers téléchargeables
Année2006
Séries alt.Alberta Energy and Utilities Board / Alberta Geological Survey, Special Report 77
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/221825
MediaCD-ROM; numérique; en ligne
Référence reliéeCette publication est reliée Plouffe, A; Paulen, R C; Smith, I R; Kjarsgaard, I M; (2007). Chemistry of kimberlite indicator minerals and sphalerite derived from glacial sediments of northwest Alberta, Commission géologique du Canada, Dossier public 5545
Liensreadme
Formatspdf (Adobe® Acrobat® Reader®); xls (Microsoft Excel 2000); txt
ProvinceAlberta
SNRC84L; 84M
Lat/Long OENS-120.0000 -118.0000 60.0000 58.0000
Sujetsprospection minière; gisements minéraux; exploration de dépôts glaciaires; zinc; dépôts glaciaires; topographie glaciaire; analyses géochimiques; analyses des minéraux lourds; sphalérite; galène; glaciation; directions des mouvements de la glace; directions du transport de la glace; Wisconsinien; dépôts fluvioglaciaires; profils de dispersion; fractionation; tills; silts; argiles; sables; sols; roches mères; régions émettrices; gisements minéraux hydrothermaux; géochimie des fluides géothermiques; remobilisation; roches sédimentaires; carbonates; plomb; schistes; kimberlites; diamant; pyrope; chromite; or; gaz d'hydrocarbure; Plateau d'Alberta ; Dépôt de Pine Point ; Zone de cisaillement de Great Slave Lake ; Calotte glaciaire Laurentide; géologie des dépôts meubles/géomorphologie; géologie économique; géochimie; Cénozoïque; Quaternaire
Illustrationssketch maps; photographs; flow charts
ProgrammeL'Initiative géoscientifique ciblée (IGC-2), 2003-2005
ProgrammeLa mise en valeur des ressources du Nord
Diffusé2006 03 01
Résumé(disponible en anglais seulement)
This report presents the results of heavy mineral and geochemical analyses conducted on glacial sediment samples collected in northwest Alberta. This study was undertaken as part of a collaborative project between the Alberta Geological Survey (Alberta Energy and Utilities Board) and the Geological Survey of Canada (Natural Resources Canada) originally designed to assess the regional occurrence of kimberlite indicator minerals (KIMs) in glacial deposits. Results indicate that KIMs are absent, or rare, and generally consist of trace contents of pyrope and chromite, the composition of which remains to be assessed with electron microprobe analyses. Gold grains are generally absent from all samples with a some exceptions where they are present in only small amounts. Of particular significance, and the focus of this report, is the presence of anomalous concentrations of sphalerite grains with secondary galena (up to 1000 sphalerite grains in the 0.25-0.5 mm size fraction from a bulk till sample) from the south-central sector of the Bistcho Lake (NTS 84M) and north central sector of the Zama Lake (NTS 84L) map sheets. The source of the sphalerite grains in till is unknown. However, given its geographically restricted presence in the regional sample set, it may point to undiscovered sedimentary hosted zinc deposits in this region, and therefore, represents new opportunities for mineral exploration.
GEOSCAN ID221825