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TitleU-Pb zircon geochronology of metaplutonic rocks across the southern Rae Province, Northwest Territories
AuthorRegis, D; Martel, E; Davis, W J; Pehrsson, S J
SourceGeological Survey of Canada, Open File 8254, 2017, 37 pages, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatreadme
File formatpdf; rtf; xlsx
ProvinceNorthwest Territories; Nunavut
NTS65C; 65D; 65E; 65F; 65K; 65L; 65M; 65N; 75
Lat/Long WENS-112.0000 -100.0000 64.0000 60.0000
Subjectsgeochronology; tectonics; geophysics; radiometric dating; uranium lead dating; zircon; bedrock geology; lithology; metamorphic rocks; orthogneisses; igneous rocks; plutonic rocks; felsic intrusive rocks; gabbros; granodiorites; tonalites; syenites; monzo-granites; monzodiorites; anorthosites; granites; leucosomes; garnet; hornblende; clinopyroxene; quartz; orthopyroxene; structural features; shear zones; faults; tectonic setting; tectonic evolution; deformation; metamorphism; intrusions; dykes; partial melting; recrystallization; geophysical interpretations; magnetic interpretations; total field magnetics; Archean; Canadian Shield; Rae Province; Snowbird Tectonic Zone; Black Bay Fault; Howard Lake Shear Zone; Hearne Craton; Rae Craton; Chipman Domain; Snowbird Domain; Wholdaia Lake Shear Zone; Firedrake Domain; McCann Domain; Penylan Domain; Howard Lake Domain; Lynx Lake Domain; Porter Domain; Paleoproterozoic; Neoarchean; Sensitive High Resolution Ion Microprobe (SHRIMP) analysis; metaplutonic rocks; syenogranites; megacrystic rocks; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; geochronological charts; graphs; tables; photographs; Concordia diagrams; photomicrographs; plots; histograms
ProgramSouth Rae Province Bedrock/Surficial geology, GEM2: Geo-mapping for Energy and Minerals
Released2017 07 06
Summary(Plain Language Summary, not published)
This Open File presents new SHRIMP (Sensitive High-Resolution Ion Microprobe) zircon U-Pb geochronological results for twenty-one plutonic samples in the southern part of the Rae craton (Northwest Territories). Detailed mapping and sampling for U-Pb geochronology (two field seasons: 2015 and 2016) was carried out in collaboration with the NTGS as part of Natural Resources Canada's Geomapping for Energy and Minerals (GEM2) program South Rae project. Samples have been collected from ten tectono-metamorphic domains recognized in the South Rae to unravel key age relationships and place time constraints on the geologic evolution of the domains. The results are integrated and compared with published data for the same area.