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TitreDevelopment of indicator mineral exploration methods for Cu-Pb-Zn VMS and intrusion-hosted Sn and W deposits in glaciated terrain
AuteurMcClenaghan, M B; Paulen, R C; Averill, S A; Parkhill, M A; Pronk, T; Seaman, A; Adcock, S; Spirito, W
SourceAMEBC Roundup 2013, abstract volume; par Association for Mineral Exploration BC; 2013 p. 1
Année2013
Séries alt.Secteur des sciences de la Terre, Contribution externe 20120392
RéunionBritish Columbia's Mineral Exploration Roundup; Vancouver; CA; janvier 28-31, 2013
Documentlivre
Lang.anglais
Mediaen ligne; numérique
Formatspdf
Sujetséléments d'indice; prospection minière; étain; cuivre; plomb; zinc; tungstène; géologie des dépôts meubles/géomorphologie; géologie économique; Cénozoïque; Quaternaire
ProgrammeÉtude des gîtes porphyriques, Initiative géoscientifique ciblée (IGC-4)
LiensOnline - En ligne
Résumé(disponible en anglais seulement)
Cu-Pb-Zn VMS deposits and intrusion-hosted Sn and W deposits have characteristic suites of indicator minerals that can be glacially dispersed and recovered from surficial sediments. However, limited research has been conducted to document the abundance and chemistry of these minerals within the deposits and processes related to glacial erosion, transportation and deposition in glacial sediments. The Geological Survey of Canada (GSC) is addressing this knowledge gap through its Targeted Geoscience Initiative (TGI-4) and Geo-mapping for Energy and Minerals (GEM) programs. GSC collected suites of bedrock and till samples around four known deposits: 1) Sisson Brook W-Mo-Cu deposit; 2) Mount Pleasant Sn-W-Mo-Bi-In deposit; 3) Izok Lake Zn-Cu-Pb-Ag VMS deposit, and the 4) Pine Point Pb-Zn MVT deposit. The objectives of these case studies are to define the indicator mineralogy of these specific deposit types, to characterize the glacial dispersal of these minerals at the deposit- and camp-scale at varying distances up- and down-ice, and establish processing methods for indicator mineral recovery and characterization for these deposit types.
In response to this broadening of indicator mineral suites, the GEM Program has commenced a compilation of indicator mineral data and metadata from published government and industry assessment files, reports, and private exploration company holdings. The indicator mineral data being compiled complements the existing specialized kimberlite KIDD-KIMC data sets provided by GSC's northern territorial partners, and include indicator minerals of all commodities. The information is captured in the Canadian Database of Geochemical Surveys (CDoGS), which accommodates the comprehensive metadata required for all varieties of geochemical and indicator mineral surveys. The CDoGS web portal (http://geochem.nrcan.gc.ca) exposes these surveys in query-able fashion and the results of various reported indicator minerals are displayed using Google EarthTM, where instant linkages and interpretations can be made from seeing the data plotted in association with regional glacial landforms.
GEOSCAN ID292213