|Title||Reconnaissance geological mapping and thematic studies of the Elu Basin, Nunavut|
|Author||Rainbird, R H; Ielpi, A|
|Source||Geological Survey of Canada, Open File 7730, 2015, 10 pages, https://doi.org/10.4095/295696 (Open Access)|
|Publisher||Natural Resources Canada|
|Area||Elu Inlet; Kuururjuaq Point; Hope Bay; Kent Peninsula|
|Lat/Long WENS||-108.0000 -105.5000 68.8667 68.0000|
|Subjects||economic geology; stratigraphy; basins; basin analyses; mineral potential; depositional environment; depositional history; mineralization; sedimentary rocks; sandstones; dolostones; shales; gamma-ray
surveying; Elu Basin; Ellice Formation; Paleozoic; Cambrian; Ordovician|
|Illustrations||location maps; photographs|
|Program||Rae Province, Chantrey-Thelon, GEM2: Geo-mapping for Energy and Minerals|
|Released||2015 01 20|
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 Elu Basin Geoscience Project is a sub-activity of the
Geology and Mineral Potential of the Chantrey-Thelon Area activity within the Rae Project (led by GSC in collaboration with C-NGO). Its primary focus is to define the main basin depositional elements of the Elu Basin and evaluate its potential to
host stratabound and/or unconformity-type mineralization, particularly of uranium.
|Summary||(Plain Language Summary, not published)|
The Elu Basin is in the Kitikmeot Region of Nunavut, Canada, contains rocks of ca. 1.9-1.6 Ga age. These rocks consist of sandstone considered to have
been deposited by ancient rivers. Sandstone is topped by carbonates deposited along the shelves of a shallow sea. Similar rocks exposed elsewhere in Northern Canada already demonstrate vast potential for the extraction of uranium, as well as of a
suite of industrial metals. However, despite some reconnaissance mapping performed in the 1970s, the economic potential of the Elu Basin is still largely unknown. During the summer of 2014, the initial phase of the Elu Basin Geoscience Project
focused on mapping and analyzing a set of sandstone packages that could host economic deposits. Mapping was assisted by sampling for natural radioactivity using portable instruments, and followed by laboratory analyses. Concentrations of economic
minerals were found within accumulations of pyrite and chalcopyrite. These results emphasize the efficacy of both field-based analysis of natural radioactivity and of bulk-rock sampling.