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TitlePétrographie, chimie minérale et composition géochimique d'intrusions mafiques de la suite de Soisson, sud-est de la province de Churchill (Québec, Canada)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorSappin, A -AORCID logo; Houlé, M G; Corrigan, DORCID logo; Bédard, M -P; Wodicka, NORCID logo; Brind'Amour-Côté, C; Rayner, NORCID logo
SourceGeological Survey of Canada, Scientific Presentation 115, 2020, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingQuébec Mines+Énergie 2019; Québec, QC; CA; November 18-21, 2019
Mediaon-line; digital
RelatedThis publication is related to Petrography, geochemistry, and mineral chemistry of the Mesoproterozoic Soisson mafic Intrusive Suite, southeastern Churchill Province, Quebec, Canada
File formatpdf
AreaLac Saffray; Lac Papavoine; Lac La Moinerie; Lac Soisson; Rivière à la Baleine
Lat/Long WENS -68.0000 -66.0000 58.0000 57.0000
Subjectsigneous and metamorphic petrology; geochemistry; mineralogy; economic geology; Science and Technology; Nature and Environment; mineral deposits; mineral potential; nickel; copper; iron; sulphides; intrusions; bedrock geology; lithology; igneous rocks; intrusive rocks; mafic intrusive rocks; troctolites; gabbros; textural analyses; trace element analyses; major element analyses; lithogeochemistry; petrographic analyses; Archean; Soisson Suite; Mesoproterozoic; Churchill Province; Core Zone; Papavoine Intrusion; Voisey's Bay Intrusion; Nain Plutonic Suite; platinum group elements; Precambrian; Proterozoic
Illustrationsplots; geoscientific sketch maps; photomicrographs
ProgramGEM2: Geo-mapping for Energy and Minerals Hudson/Ungava Core Zone
Released2020 03 03
Summary(Plain Language Summary, not published)
The Soisson Suite includes a series of Mesoproterozoic, km-scale, gabbroic intrusions within the Core Zone. These intrusions occur mainly west and north-west of the Saffray lake (Soisson North intrusions) and in the Soisson and Papavoine lakes area (Soisson South intrusions), where one of them, the Papavoine intrusion, was recently dated at 1311 Ma. The Soisson North and South intrusions show similar textures and have chemical and mineralogical compositions that generally follow the same evolution trends. These similarities suggest that all the Soisson intrusions are cogenetic and prospective to host Ni-Cu-PGE mineralization, given the significant presence of Fe-Ni-Cu sulfides in the Papavoine intrusion. The results also indicate that the Soisson intrusions share textural and chemical similarities with the Voisey's Bay intrusion from the Nain plutonic Suite. The Soisson Suite is slightly younger than the Voisey's Bay intrusion, but contemporary to the younger intrusions of the Nain plutonic Suite, suggesting a possible genetic link between both suites.

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