GEOSCAN Search Results: Fastlink


TitleIsotopic and geochemical signatures of base metal indicator minerals from regional surficial samples in the southern Mackenzie region, Northwest Territories
AuthorKing, R; Piercey, S; Paulen, RORCID logo; Smith, RORCID logo; Day, SORCID logo; Petrus, J
SourceGAC-MAC-IAH 2019: where geosciences converge/AGC-AMC-AIH 2019 : où les géosciences convergent; GAC-MAC-IAH Joint Meeting, Abstract volume vol. 42, 2019 p. 121 Open Access logo Open Access
LinksOnline - En ligne (complete volume, volume complet, PDF, 6.08 MB)
Alt SeriesNatural Resources Canada, Contribution Series 20180387
PublisherGeological Association of Canada
MeetingGAC-MAC-IAH 2019 / AGC-AMC-AIH 2019; Québec, QC; CA; May 12-15, 2019
Mediaon-line; digital
RelatedThis publication is related to Isotopic and geochemical signatures of base-metal indicator minerals in the southern Northwest Territories
File formatpdf
ProvinceNorthwest Territories
NTS85B/09; 85B/10; 85B/11; 85B/14; 85B/15; 85B/16
AreaPine Point; Great Slave Lake
Lat/Long WENS-115.0000 -114.0000 61.0000 60.5000
Lat/Long WENS-115.0000 -114.0000 61.0000 60.5000
Subjectssurficial geology/geomorphology; geochemistry; mineralogy; economic geology; Science and Technology; Nature and Environment; mineral exploration; exploration methods; mineral deposits; base metals; geochemical analyses; isotopic studies; glacial deposits; till samples; stream sediment samples; stream sediment geochemistry; till geochemistry; heavy mineral samples; mineral occurrences; mass spectrometer analysis; electron probe analyses; mineralogical analyses; Pine Point Mining District
ProgramGEM2: Geo-mapping for Energy and Minerals Mackenzie Corridor, Southern Mackenzie Surficial Mapping
Released2019 05 01
AbstractHeavy indicator minerals recovered from stream sediment and till samples are commonly used for exploration in glaciated terrain. The geochemical and isotopic composition of recovered heavy minerals can be used to determine provenance, deposit type, and guide exploration programs to prospective areas. As part of the Geological Survey of Canada's Geo-mapping for Energy and Minerals (GEM) program till samples and stream sediments were collected across an area of 35 000 km2 in the southern Northwest Territories. The Pine Point Mississippi Valley-type (MVT) district is present within the study area and is the largest known mineral occurrence in the region. Despite the potential to host additional mineral resources, very little exploration has been undertaken outside of Pine Point. Till samples collected during previous studies in the region recovered elevated counts of base metal indicator minerals, including sphalerite, galena, chalcopyrite, and arsenopyrite. Sulphur and lead isotope determinations by secondary ion mass spectrometry and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) indicates galena grains were sourced from MVT occurrences distinct from Pine Point and likely sourced from within 5 km of peak galena abundance samples sites. LA-ICP-MS and electron probe micro analysis of sphalerite grains suggest they originated from MVT mineralization, but distinct from Pine Point. Sulphur isotopes from chalcopyrite grains show potential for manto and/or sediment-hosted Cu sources. Arsenopyrite grains are less abundant than other grains and were likely sourced from orogenic Au systems 380 km northeast of the study area in the Canadian Shield.
Summary(Plain Language Summary, not published)
GEM2 Funded MSc student presentation at Canada's national geological conference, summarizing field research and laboratory results.

Date modified: