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TitleGold grains in till samples from the southern Core Zone, Quebec and Newfoundland and Labrador (NTS 23-P and 23-I): potential for undiscovered mineralization
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AuthorMcClenaghan, M B; Paulen, R C; Rice, J M; Campbell, H E; Pyne, M D
SourceGeological Survey of Canada, Open File 8222, 2017, 21 pages, https://doi.org/10.4095/300657
Year2017
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf; rtf; xlsx
ProvinceQuebec; Newfoundland and Labrador
NTS23I; 23P
AreaWoods Lake; Lac Résolution; Labrador; Rivière de Pas; Rivière George; Smallwood Reservoir
Lat/Long WENS -66.0000 -64.0000 56.0000 54.0000
Subjectssurficial geology/geomorphology; geochemistry; economic geology; glacial deposits; tills; mineral deposits; mineral exploration; mineral potential; exploration guidelines; metals; gold; till samples; till geochemistry; mud boils; permafrost; heavy mineral analyses; size fractionation; sulphides; oxides; silicates; scanning electron microscope analyses; sperrylite; pyrite; chalcopyrite; epidote; rutile; diopside; goethite; orthopyroxene; bedrock geology; lithology; igneous rocks; mafic volcanic rocks; intrusive rocks; felsic intrusive rocks; granitic rocks; monzo-granites; granodiorites; porphyries; orthopyroxene; hornblende; biotite; intrusions; metamorphic rocks; orthogneisses; schists; arenites; metavolcanic rocks; mafic metavolcanic rocks; metabasalts; semipelites; metasedimentary rocks; glacial history; Wisconsinian glacial stage; glaciation; depositional environment; depositional history; sediment transport; sediment dispersal; ice movement directions; glacial erosion; glacial landforms; sands; silts; Archean; Core Zone; New Quebec Orogen; De Pas Batholith; Churchill Province; Doublet Terrane; Ntshuku assemblage; Atshakash assemblage; Zeni assemblage; Lobstick Group; Laurentide Ice Sheet; New-Québec dome; Ancestral Labrador Divide; indicator minerals; syenogranites; metatuffs; metamorphosed massive sulphide indicator mineral (MMSIM); Phanerozoic; Cenozoic; Quaternary; Precambrian; Proterozoic
Illustrationsgeoscientific sketch maps; photographs; flow charts; photomicrographs
ProgramHudson/Ungava, Northeastern Quebec-Labrador, surficial geology, GEM2: Geo-mapping for Energy and Minerals
ProgramPolar Continental Shelf Program
Released2017 05 17
AbstractThis report presents the indicator mineral content of till samples (n=86) collected during the summer of 2016, in the southern sector of the Core Zone located within Woods Lake (NTS 23-I) and Lac Résolution (NTS 23-P) map areas, approximately 50 km east of Shefferville, Quebec. Of potential interest for mineral exploration in this region is the presence of gold grains (7 to 63 grains /10 kg) in 15 till samples principally collected over the Doublet Zone mafic volcanic rocks. One sample located over the Core Zone orthogneiss contains a noticeably large sand-sized gold grain, which is in contrast with the silt-sized gold particles in the other till samples. The source(s) of gold in the till is unknown. The 2016 till sampling survey was the third of three field seasons of reconnaissance-scale surficial mapping and till sampling in the south part of the Core Zone and was conducted as part of the GSC's Core Zone Surficial Activity (2014-2017) of the Geomapping for Energy and Minerals 2 (GEM 2) Program. Indicator mineral results for the 2014 and 2015 till samples, which were originally presented in McClenaghan et al. (2016) and Rice et al. (2017), are included for completeness.
Summary(Plain Language Summary, not published)
This open file reports indicator mineral abundance data for till samples collected in over 3 years as part of the Hudson-Ungava GEM project in northern Labrador and eastern Quebec. The data will be used by exploration companies to assess the mineral potential and actively explore this region east of Schefferville.
GEOSCAN ID300657