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TitleU-Pb geochronological results from the Nonacho Lake area (NTS 75-F), Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorRegis, D; Canam, R; Martel, E
SourceGeological Survey of Canada, Open File 8880, 2022, 33 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatreadme
File formatpdf; rtf; xlsx (Microsoft® Excel®)
ProvinceNorthwest Territories
AreaNonacho Lake
Lat/Long WENS-110.0000 -108.0000 62.0000 61.0000
Subjectsgeochronology; geochemistry; Science and Technology; Nature and Environment; radiometric dating; uranium lead dating; zircon dates; lead lead dates; basement geology; lithology; igneous rocks; intrusive rocks; monzonites; monzo-granites; diorites; monzodiorites; volcanic rocks; andesites; metamorphic rocks; orthogneisses; tectonic setting; metamorphism; crystallization; scanning electron microscope analyses; isotopic studies; Archean; Nonacho Group; Howard Lake Shear Zone; Porter Domain; Rae Craton; Canadian Shield; Taltson Magmatic Zone; Laurentia; Thelon Tectonic Zone; Nonacho Basin; Inheritance; Collaborative research; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; tables; photographs; Concordia diagrams; photomicrographs; bar graphs; plots
ProgramGEM2: Geo-mapping for Energy and Minerals GEM Synthesis
Released2022 04 01
Summary(Plain Language Summary, not published)
This Open File presents new SHRIMP (Sensitive High-Resolution Ion Microprobe) U-Pb zircon geochronological results for fifteen plutonic samples from the Nonacho Lake area along the western margin of the Rae craton (Northwest Territories). Detailed mapping and sampling for U-Pb geochronology was carried out by Northwest Territories Geological Survey (NTGS) and academic partners as part of the 'Nonacho Bedrock Mapping Project' during the 2018-2020 field seasons. Samples have been collected from the Nonacho basement to unravel key age relationships between units, place time constraints on the geologic evolution of the southwestern Rae margin, and assess its mineral potential.

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