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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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AuthorDavey, S; Bleeker, W; 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, https://doi.org/10.4095/313675 (Open Access)
Year2019
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
RelatedThis publication is contained in Rogers, N; (2019). Targeted Geoscience Initiative: 2018 report of activities, Geological Survey of Canada, Open File 8549
File formatpdf
ProvinceOntario
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; ore systems approach; platinum group elements (PGE); large igneous provinces (LIPS); dyke swarms; rare earth element analyses; high field strength elements (HFSE) analyses; Precambrian; Proterozoic
Illustrationsgeoscientific sketch maps; tables; lithologic sections; geochemical profiles; photomicrographs; Concordia diagrams; geochemical plots
ProgramKnowledge Management Coordination, Targeted Geoscience Initiative (TGI-5)
ProgramNickel-copper-PGE-chromium ore systems - deposit controls in cratonic areas, Targeted Geoscience Initiative (TGI-5)
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.
GEOSCAN ID313675