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TitleNi-Cu-PGE potential of the Nipissing sills as part of the ca. 2.2 Ga Ungava Large Igneous Province
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorDavey, S; Bleeker, WORCID logo; Kamo, S; Davis, D; Easton, M; Sutcliffe, R H
SourceTargeted Geoscience Initiative: 2018 report of activities; by Rogers, N (ed.); Geological Survey of Canada, Open File 8549, 2019 p. 403-419, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Targeted Geoscience Initiative: 2018 report of activities
File formatpdf
NTS21; 22; 23; 24; 25; 31L/04; 31L/05; 31L/12; 31L/13; 31M/04; 31M/05; 31M/12; 31M/13; 31N; 32; 33; 34; 35; 41I; 41J; 41P
AreaSudbury; Elliot Lake; Lake Huron; Ungava Peninsula
Lat/Long WENS -84.0000 -79.5000 48.0000 46.0000
Lat/Long WENS -80.0000 -70.0000 62.0000 47.0000
Subjectseconomic geology; geochemistry; geochronology; stratigraphy; tectonics; mineral deposits; nickel; copper; mineral potential; mineral exploration; ore mineral genesis; mineralization; ore controls; crustal evolution; tectonic history; magmatism; emplacement; intrusions; sills; diabase dykes; fluid flow; tectonic interpretations; metallogeny; whole rock geochemistry; major element geochemistry; trace element geochemistry; isotopic studies; neodymium samarium dates; radiometric dating; uranium lead dating; mines; mining properties; mineral occurrences; bedrock geology; lithology; structural features; faults; drillholes; Archean; Ungava Large Igneous Province; Nipissing Diabase; Maguire Dyke; Senneterre Dyke; Klotz Dyke; Triangle Mountain Sill; Shakespeare Intrusion; Superior Craton; Sudbury Igneous Complex; Huronian Supergroup; Whitewater Group; Precambrian; Proterozoic
Illustrationsgeoscientific sketch maps; tables; lithologic sections; geochemical profiles; photomicrographs; Concordia diagrams; geochemical plots
ProgramTargeted Geoscience Initiative (TGI-5) Knowledge Management Coordination
ProgramTargeted Geoscience Initiative (TGI-5) Nickel-copper-PGE-chromium ore systems - deposit controls in cratonic areas
Released2019 03 01
AbstractThis report summarizes mineralization associated with the Nipissing Diabase sills in the broader Sudbury area and evaluates the geochemical link between these sills and potential feeder dykes that are part of the broader ca. 2.2 Ga Ungava large igneous province. New whole-rock major and trace element data are presented for the Nipissing sills and these are combined with previously published data. Sm-Nd isotope data are presented for the Maguire, Senneterre and Klotz dykes, and the Triangle Mountain sill, providing key constraints on their magmatic sources and history of crustal assimilation. To help constrain the temporal evolution of the magmatic system, a new U-Pb baddeleyite age has been determined for the Triangle Mountain sill at 2216.5 ± 2.1 Ma. We also report a previously obtained, precise, U-Pb zircon age for the Ni-Cu-PGE mineralized Shakespeare intrusion at 2217.0 +1.7/-1.5 Ma. Together, whole-rock major and trace elements, Sm-Nd isotopes, and U-Pb geochronology are used to gain a more complete picture of how the mineralized components of the ca. 2.2 Ga Ungava large igneous province were generated.
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI) is directed towards providing next generation knowledge and methods to facilitate more effective targeting of buried mineral deposits. The program aims to enhance the effectiveness of exploration for Canada's major mineral systems by resolving foundational geoscience problems that constrain the geological processes responsible for the liberation metals from their source region, transportation of these ore metals and control their eventual deposition. TGI supports projects on gold, Ni-Cr-PGE, porphyry-style mineralization, uranium and volcanic- and sedimentary-hosted base metal mineralization ore systems, with each project divided into subprojects focused on resolving specific knowledge gaps by integrating data and studies from multiple sites across Canada. Herein, we present interim results and interpretations from a selection of the research activities currently being conducted under the auspices of TGI.

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