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TitleOverview of GEM surficial geochemistry and indicator mineral surveys and case studies in northern Canada
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorMcClenaghan, M BORCID logo; Spirito, W A; Day, S J AORCID logo; McCurdy, M WORCID logo; McNeil, R J
SourceGeological Survey of Canada, Preprint 2, 2022, 59 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital
File formatreadme
File formatpdf
ProvinceCanada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectssurficial geology/geomorphology; geochemistry; economic geology; Science and Technology; Nature and Environment; Government and Politics; Education and Training; lake sediment geochemistry; lake water geochemistry; lake water; stream sediment geochemistry; tills; eskers; zinc; copper; lead; silver; rare earths; Baffin Island; Victoria Island; Melville Peninsula; Thelon Tectonic Zone; Izok Lake Deposit; Great Bear Magmatic Zone; Scientific research; Northern Canada; Communities
Illustrationslocation maps; geoscientific sketch maps; photomicrographs; plots
ProgramGEM2: Geo-mapping for Energy and Minerals GEM Synthesis
Released2022 08 03
AbstractAs part of the Geo-mapping for Energy and Minerals (GEM) program between 2008 and 2020, the Geological Survey of Canada carried out reconnaissance-scale to deposit-scale geochemical and indicator mineral surveys and case studies across northern Canada. In these studies, geochemical methods were used to determine the concentrations of 65 elements in lake sediment, stream sediment, stream water, lake water and till samples across approximately 1,000,000 km2 of northern Canada. State-of the-art indicator methods were used to examine the indicator mineral signatures in regional-scale stream sediment and till surveys. This research identified areas with anomalous concentrations of elements and/or indicator minerals that are indicative of bedrock mineralization, developed new mineral exploration models and protocols, trained a new generation of geoscientists and transferred knowledge to northern communities. The most immediate impact of the GEM surveys has been the stimulation of mineral exploration in Canada's north, focussing exploration efforts into high mineral potential areas identified in GEM regional-scale surveys. Regional- and deposit-scale studies demonstrated how transport data (till geochemistry, indicator minerals) and ice flow indicator data can be used together to identify and understand complex ice flow and glacial transport. Detailed studies at the Izok Lake, Pine Point, Strange Lake, Amaruq deposits and across the Great Bear Magmatic Zone demonstrate new suites of indicator minerals that can now be used in future reconnaissance- and regional-scale stream sediment and till surveys across Canada.
Summary(Plain Language Summary, not published)
This chapter describes regional geochemical and indicator mineral surveys carried out by the Geological Survey of Canada as part of the GEM program.

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