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TitleRare-earth elements of Permian through Cretaceous strata of the Sverdrup Basin, Nunavut and Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGrasby, S EORCID logo; Galloway, J MORCID logo
SourceGeological Survey of Canada, Open File 8894, 2022, 10 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediadigital; on-line
File formatreadme
File formatpdf; rtf; xlsx (Microsoft® Excel®)
NTS39; 49; 59; 69; 79; 89; 99; 120; 340; 560
AreaQueen Elizabeth Islands
Lat/Long WENS-125.0000 -68.0000 84.0000 76.0000
Subjectseconomic geology; geochemistry; Science and Technology; Nature and Environment; sedimentary basins; bedrock geology; lithology; sedimentary rocks; shales; phosphorites; phosphate; nodules; host rocks; mineral deposits; rock analyses, rare earth elements; Sverdrup Basin; Canadian Arctic Archipeligo; Murray Harbour Formation; Phanerozoic; Mesozoic; Cretaceous; Jurassic; Triassic; Paleozoic; Permian
Illustrationslocation maps; geoscientific sketch maps; plots
ProgramTargeted Geoscience Initiative (TGI-6) Ore systems
Released2022 06 14
This report provides new rare earth element (REE) data from Permian through to Late Cretaceous sedimentary rocks of the Sverdrup Basin, along with focused analyses on phosphate nodules that occur in the Middle Triassic Murray Harbour Formation. Results show the overall sedimentary values are low, however phosphate nodules are highly enriched in REEs.
Summary(Plain Language Summary, not published)
This study provides the first assessment of rare earth element abundance through a sedimentary profile spanning a significant age range. Results show that while sedimentary rocks are normally low in rare earth elements, periods of phosphate deposition are highly enriched. These potentially form attractive resources as extraction of rare earth elements from phosphates is simple and has low environmental impact compared to other resource types. More work is required though to define the total resource potential.

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