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TitleReconnaissance geological mapping and thematic studies of northern Brock Inlier, Northwest Territories
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AuthorRainbird, R H; Ielpi, A; Turner, E C; Jackson, V A
SourceGeological Survey of Canada, Open File 7695, 2015, 10 pages, https://doi.org/10.4095/295697
Year2015
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceNorthwest Territories
NTS97D/05; 97D/06
AreaBrock Inlier; Brock River
Lat/Long WENS-124.0000 -122.0000 69.5000 69.2500
Subjectseconomic geology; stratigraphy; sedimentology; mineral potential; depositional environment; depositional history; mineralization; sedimentary rocks; tectonostratigraphic zones; lithofacies; magnetotelluric surveys; magnetotelluric interpretations; sandstones; Mikkelsen Islands Formation; Nelson Head Formation; Precambrian; Proterozoic
Illustrationslocation maps; photographs; stratigraphic columns
ProgramMackenzie Corridor, Shield to Selwyn, GEM2: Geo-mapping for Energy and Minerals
Released2015 01 19
Abstract(unpublished)
Foreword
The Geo-mapping for Energy and Minerals (GEM) program is laying the foundation for sustainable economic development in the North. The Program provides modern public geoscience that will set the stage for long-term decision making related to investment in responsible resource development. Geoscience knowledge produced by GEM supports evidence-based exploration for new energy and mineral resources and enables northern communities to make informed decisions about their land, economy and society. Building upon the success of its first five-years, GEM has been renewed until 2020 to continue producing new, publically available, regional-scale geoscience knowledge in Canada's North.
During the summer 2014, GEM's new research program has been launched with 14 field activities that include geological, geochemical and geophysical surveying. These activities have been undertaken in collaboration with provincial and territorial governments, northerners and their institutions, academia and the private sector. GEM will continue to work with these key collaborators as the program advances.
The Brock Inlier project is an activity within the Shield to Selwyn geo-transect: studying the evolution of sedimentary rocks of the northern mainland NWT to improve exploration success: This activity will initiate the first regional integrated effort to place Proterozoic to Cenozoic strata of Mackenzie Platform, Selwyn Basin, and adjacent regions into a fully modern tectono-stratigraphic and metallogenic framework, and will better enable industry and Northerners to responsibly find and develop energy and mineral natural resources, maximizing their economic and societal impact.
Summary(Plain Language Summary, not published)
The results of initial thematic studies, including detailed sedimentological and stratigraphic studies of the early Neoproterozoic Rae Group (Mukkelsen Islands and Nelson Heag formation) are presented. Regional geological reconnaissance has identified several regions of NTS 97A that should be re-mapped owing to mis-identification of Cambrian sedimentary units as belonging to the Proterozoic Rae Group. We recommend that the Brock River area, originally mapped by helicopter reconnaissance in 1968, be re-mapped using current stratigraphic knowledge and terminology.
GEOSCAN ID295697