GEOSCAN, résultats de la recherche


TitreIndicator mineral signatures of base metal deposits: examples from TGI3 and GEM research
AuteurMcClenaghan, M B; Paulen, R; Ames, D; Spirito, W; Adcock, S; Averill, S; Layton-Matthews, D; Budulan, G; Hicken, A; Parkhill, M; Matile, G
SourceMineral Exploration Roundup 2011, presentations; 2011 p. 1-28
LiensOnline - En ligne
Séries alt.Secteur des sciences de la Terre, Contribution externe 20110027
RéunionMineral Exploration Roundup 2011; Vancouver; CA; janvier 24-27, 2011
Mediaen ligne; numérique
ProvinceNouveau-Brunswick; Ontario; Manitoba; Nunavut; Territoires du Nord-Ouest
SNRC21P/12; 41I/06; 41I/07; 41I/10; 41I/11; 86H/09; 85B/09; 85B/10; 85B/15; 85B/16; 66A/05; 63I; 63J; 63O; 63P
Lat/Long OENS -66.0000 -65.5000 47.7500 47.5000
Lat/Long OENS -81.5000 -80.5000 46.7500 46.2500
Lat/Long OENS-112.5000 -112.0000 65.7500 65.5000
Lat/Long OENS-115.0000 -114.0000 61.0000 60.5000
Lat/Long OENS -96.5000 -96.0000 64.5000 64.2500
Lat/Long OENS-100.0000 -96.0000 56.0000 54.0000
Sujetséléments d'indice; gisements minéraux; gîtes minéralogiques; métaux de base; gisements de métaux de base; techniques de prospection; olivine; chromite; chalcopyrite; pyrrhotite; sphalérite; galène; sphalérite; gahnite; staurotide; diopside; pentlandite; géologie économique; minéraux métalliques
Illustrationslocation maps; photographs; screen captures; tables
ProgrammeBases de données couvrant les trois territoires (minéraux indicateurs), GEM : La géocartographie de l'énergie et des minéraux
Résumé(disponible en anglais seulement)
Analogous to kimberlites, base metal deposits have characteristic suites of indicator minerals that can be recovered from surficial sediments. However, limited research has been conducted to document the abundance and chemistry of these minerals within the deposits and how they are dispersed in the surrounding surficial media. To address this knowledge gap, the Geological Survey of Canada (GSC) through its Targeted Geoscience Initiative 3 (TGI3), in collaboration with the Canadian Mining Industry Research Organization (CAMIRO), and most recently through its Geo-mapping for Energy and Minerals (GEM) Program, has collected suites of bedrock and till samples around base metal and uranium deposits across Canada. The objectives of these case studies are to characterize the geochemical and mineralogical signature of specific deposit types at the deposit- and camp-scale at varying distances down-ice, to define background, and to establish methods for indicator mineral recovery and characterization.
Results from TGI3 studies in the Bathurst VMS Camp, Thompson Ni Belt, and Sudbury Structure will be presented along with ongoing GEM research at the Izok Lake VMS deposit, Pine Point MVT deposits, and the Kiggavik U deposit. These case studies demonstrate the broad spectrum of commodities (diamonds, base and precious metals, uranium) that indicator minerals methods are now used for in exploration. In response to this broadening of indicator mineral types, the GEM Program has commenced a compilation of indicator mineral data for all commodities from published government and industry assessment files, reports, and private exploration company holdings to assist exploration in northern Canada. These compiled data will complement the existing specialized kimberlite KIDD-KIMC data sets provided by GSC¿s northern Territorial partners. The advantages of this new database along with an example of multi-commodity indicator mineral data from Nunavut will be highlighted in this talk.