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TitleSouth Rae Project: preliminary field observations (2015) and lake sediment analysis, Northwest Territories and Saskatchewan
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorAcosta-Góngora, P; Pehrsson, S J; Martel, E; Lauzon, G; Jamieson, D
SourceGeological Survey of Canada, Scientific Presentation 67, 2017, 47 pages, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingSouth Rae Mapping Project Workshop; Ottawa; CA; September 2015
Mediaon-line; digital
File formatpptx; pdf
ProvinceNorthwest Territories
NTS65D; 65E; 75A; 75B; 75G; 75H
AreaDubawnt River; Thye Lake
Lat/Long WENS-108.0000 -102.0000 62.0000 60.0000
Subjectseconomic geology; geophysics; geochemistry; mineral deposits; ore mineral genesis; mineralization; models; host rocks; veins; uranium; gold; copper; nickel; oxides; sulphides; lake sediments; lake sediment geochemistry; geophysical surveys; radiometric surveys; radiometric anomalies; thorium; magnetic surveys; magnetic field; magnetic anomalies; stable isotope studies; iron; sulphur; radioisotopes; strontium; radiometric dating; uranium lead dating; bedrock geology; lithology; igneous rocks; intrusive rocks; syenites; clinopyroxene; pegmatites; feldspar; felsic intrusive rocks; gabbros; norites; breccias; apatite; metamorphic rocks; amphibolites; gneisses; paragneisses; granodiorites; magmatism; intrusions; alteration; fluid flow; textures; mines; cesium; neodymium; shear zones; mylonitization; Rae craton; Snowbird Tectonic Zone; Black Bay fault Zone; Thye Lake Deposit; Tantato Domain; Dodge Domain; Precambrian
Illustrationslocation maps; photographs; geoscientific sketch maps; models; schematic cross-sections
ProgramGEM2: Geo-mapping for Energy and Minerals South Rae Province Bedrock/Surficial geology
Released2017 07 06
Summary(Plain Language Summary, not published)
The South Rae mapping project is part of the Geo-mapping for Energy and Minerals Program (GEM II) run by Natural Resources Canada. This contribution comprises a presentation given on September of 2015 in the first 'South Rae mapping project workshop' (Ottawa), held after the 2015 field season campaign (Canadian Northwest Territories; NTS maps 75A,B). The presentation contains descriptions and locations of several newly discovered radiometric anomalies in the southwestern (Sarita, Hidden and Triple X) and northeastern (Gemelo area) portions of the Black Bay fault. The latter area is also host to the newly discovered Gemelo REE showing (up to 0.8 wt. % REE). The showing is hosted by a syenitic unit in veins, and/or segregates made of clinopyroxene-hyalophane-magnetite-allanite. This minerolagy is similar to that of the Hoidas deposit (~100 km SW; northern Saskatchewan) also located along the trace of the Black Bay fault. Finally, we present multiple element concentration maps done after a lake sediment geochemical sampling survey carried out in northern Saskatchewan.

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