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TitleReport of activities for the GEM-2 Chantrey-Thelon activity: Thelon Tectonic Zone project, Nunavut
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AuthorBerman, R G; Davis, W J; Sanborn-Barrie, M; Whalen, J B; Taylor, B E; McMartin, I; McCurdy, M W; Mitchell, R K; Ma, S; Coyle, M; Roberts, B; Craven, J A
SourceGeological Survey of Canada, Open File 8372, 2018, 19 pages, https://doi.org/10.4095/306622
Year2018
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatpdf
ProvinceNunavut
NTS76H; 76I
AreaBack River; Ellice River; Queen Maud Migratory Bird Sanctuary
Lat/Long WENS-106.0000 -104.0000 67.0000 65.0000
Lat/Long WENS -97.5833 -96.3333 66.5000 65.9167
Lat/Long WENS-108.0000 -106.0000 68.0000 67.0000
Subjectsregional geology; tectonics; geochronology; geophysics; economic geology; geochemistry; bedrock geology; lithology; igneous rocks; intrusive rocks; leucogranites; granitic rocks; diorites; granodiorites; monzo-granites; charnockites; tonalites; volcanic rocks; metamorphic rocks; amphibolites; granite gneisses; sedimentary rocks; iron formations; sandstones; conglomerates; psammites; pelites; carbonates; greywackes; tectonic evolution; magmatism; intrusions; plutons; crystallization; metamorphism; deformation; plate margins; sedimentary basins; crustal structure; modelling; mineral deposits; mineral potential; base metals; precious metals; copper; silver; gold; lead; arsenic; glacial deposits; tills; moraines; clasts; textural analyses; provenance; glacial history; glaciation; deglaciation; ice flow; ice movement directions; sediment transport; sediment dispersal; stream sediment geochemistry; whole rock analyses; trace element analyses; major element analyses; geochemical anomalies; radiometric dating; neodymium samarium dates; zircon dates; geophysical surveys; magnetic surveys; aeromagnetic surveys; magnetotelluric surveys; conductivity; isotopic studies; oxygen isotopes; Archean; Thelon Tectonic Zone; Queen Maud Block; Rae Craton; Slave Craton; Overby Lake Domain; Ellice River Domain; Duggan Lake Domain; Dubawnt Lake Ice Stream; MacAlpine Moraine System; Paleoproterozoic; Ellice River Formation; Yellowknife Supergroup; Hudsonian Orogeny; Kilohigok Basin; Goulburn Supergroup; Kenyon Formation; Bear Creek Group; Hackett Formation; Rifle Formation; Arrowsmith Orogeny; Beechey Formation; Burnside Formation; Brownsound Formation; Amagok Formation; Taltson Magmatic Zone; geological mapping; 3D modelling; monzogabbros; microdiorites; diatextites; Phanerozoic; Cenozoic; Quaternary; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; plots; models; histograms
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramRae Province, Chantrey-Thelon, GEM2: Geo-mapping for Energy and Minerals
Released2018 03 06
Summary(Plain Language Summary, not published)
Major highlights of this wrap-up year of the Thelon tectonic zone (Ttz) project include: (1) differences in crystallization ages (as early as 2.07 Ga in Ttz), major and trace element geochemistry, and oxygen isotope data demonstrate that the Ttz is not a direct correlative of the Taltson magmatic zone, as has long been considered; (2) geochemical data indicate Ttz plutonism occurred in a convergent margin setting, contradicting a proposed intracontinental model; (3) Nd-Sm isotopic data suggest the four main belts of ~2.0 Ga Ttz plutonic rocks interacted with Mesoarchean crust of the western Rae craton; (4) till and stream sediment data reveal three primary areas of elevated economic potential: base and precious metals in the eastern Slave craton, base metals associated with Paleoproterozoic supracrustal rocks of Ellice River domain, gold associated with dioritic rocks and/or iron formation in southeastern region.
GEOSCAN ID306622