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TitleOverview of surficial geochemistry and indicator mineral surveys and case studies from the Geological Survey of Canada's GEM Program
AuthorMcClenaghan, M BORCID logo; Spirito, W A; Day, S J AORCID logo; McCurdy, M WORCID logo; McNeil, R J; Adcock, S W
SourceGeochemistry: Exploration, Environment, Analysis vol. 22, no. 1, geochem2021-070, 2022 p. 1-21, Open Access logo Open Access
LinksCanadian Database of Geochemical Surveys - Banque de données de levés géochimiques du Canada
Alt SeriesNatural Resources Canada, Contribution Series 20210301
PublisherThe Geological Society
Mediapaper; on-line; digital
File formatpdf; html
ProvinceManitoba; Newfoundland and Labrador; Northwest Territories; Nunavut; Quebec; Saskatchewan
NTS13; 14; 15; 16; 23; 24; 25; 26; 27; 28; 29; 33; 34; 35; 36; 37; 38; 39; 45; 46; 47; 48; 49; 53; 54; 55; 56; 57; 58; 59; 63; 64; 65; 66; 67; 68; 69; 74; 75; 76; 77; 78; 79; 85; 86; 87; 88; 89; 95; 96; 97; 98; 99; 105; 106; 107; 340; 560
Lat/Long WENS-134.0000 -58.0000 82.0000 52.0000
Subjectssurficial geology/geomorphology; geochemistry; economic geology; Science and Technology; Nature and Environment; Government and Politics; Education and Training; mineral exploration; mineral potential; exploration methods; mineral deposits; sulphide deposits; sedimentary ore deposits; zinc; copper; lead; silver; uranium; iron; fluorine; gold; iron oxides; mineralization; mineral associations; geochemical surveys; lake sediment geochemistry; lake water geochemistry; stream sediment geochemistry; stream water geochemistry; till geochemistry; anomalies; bedrock geology; models; glacial history; ice flow; sediment transport; Geo-mapping for Energy and Minerals Program; Geological Survey Of Canada; Great Bear Magmatic Zone; Izok Lake Deposit; Pine Point Mining Camp; Strange Lake Deposit; ice-flow directions; Federal government; Federal programs; Scientific research; Training; Knowledge transfer; Northern Canada; Communities; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; geoscientific sketch maps; photomicrographs; profiles
ProgramGEM2: Geo-mapping for Energy and Minerals GEM Synthesis
Released2022 02 03
AbstractThe Geological Survey of Canada carried out reconnaissance-scale to deposit-scale geochemical and indicator-mineral surveys and case studies across northern Canada between 2008 and 2020 as part of its Geo-mapping for Energy and Minerals (GEM) program. In these studies, surficial geochemistry was used to determine the concentrations of up to 65 elements in various sample media including lake sediment, lake water, stream sediment, stream water, or till samples across approximately 1?000?000?km2 of northern Canada. As part of these surficial geochemistry surveys, indicator mineral methods were also used in regional-scale and deposit-scale stream sediment and till surveys. Through this program, areas with anomalous concentrations of elements and/or indicator minerals that are indicative of bedrock mineralization were identified, new mineral exploration models and protocols were developed, a new generation of geoscientists was trained, and geoscience knowledge was transferred to northern communities. Regional- and deposit-scale studies demonstrated how transport data (till geochemistry, indicator mineral abundance) 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 Zn-Cu-Pb-Ag VMS, Nunavut, the Pine Point carbonate-hosted Pb-Zn in the Northwest Territories, the Strange Lake REE deposit in Quebec and Labrador as well as U-Cu-Fe-F and Cu-Ag-Au-Au IOCG deposits in the Great Bear magmatic zone, Northwest Territories 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 article summarizes the results of NRCan's Geo-mapping for Energy and Minerals program for surficial geochemistry surveys and case studies conducted between 2008 and 2012. This research highlight the natural resources potential of Canada's North.

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