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TitleTill geochemical signatures of magmatic Ni-Cu deposits and regional till geochemistry, Thompson Nickel Belt, Manitoba
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AuthorMcClenaghan, M B; Matile, G; Layton-Matthews, D; Pyne, M
SourceGeological Survey of Canada, Open File 6005, 2009, 121 pages; 1 CD-ROM, https://doi.org/10.4095/247412 (Open Access)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
Year2009
PublisherNatural Resources Canada
Documentopen file
Lang.English
MediaCD-ROM; digital; on-line
RelatedThis publication is contained in McMartin, I; Campbell, J E; Dredge, L A; (2012). A trans-jurisdiction database of till composition across the Circum-Kisseynew area, Manitoba and Saskatchewan, Geological Survey of Canada, Open File 7064
File formatreadme
File formatidx; xls; pdf
ProvinceManitoba
NTS63I/12; 63I/13; 63J/09; 63J/10; 63J/15; 63J/16; 63O/01; 63O/02; 63O/07; 63O/08; 63O/09; 63O/10; 63O/15; 63O/16; 63P/04; 63P/05; 63P/12; 63P/13
AreaThompson
Lat/Long WENS-99.0000 -97.5000 56.0000 54.5000
Subjectseconomic geology; surficial geology/geomorphology; geochemistry; mineral occurrences; mineral deposits; copper; nickel; magmatic deposits; magmatic rocks; till analyses; till geochemistry; tills; glacial deposits; glacial features; glacial striations; ice flow; geochemical surveys; Thompson Nickel Belt
Illustrationslocation maps; tables; photographs; ternary diagrams; plots
ProgramDeep Search TGI-3, Targeted Geoscience Initiative (TGI-3), 2005-2010
Released2009 05 26
AbstractThe Geological Survey of Canada conducted a till compositional study around the komatiite-associated Ni-Cu deposits in the northern Thompson Nickel Belt, northern Manitoba, to document the multi-element geochemical signature of the deposits in the <0.063 mm fraction of till. Samples used in this study include archived material collected in 1996 and samples collected in 2005 and 2006. The Laurentide Ice Sheet flowed across the Thompson Nickel Belt southwestward and subsequently westward, and striations from both ice-flow events are readily apparent on outcrops along the Belt. Exploration along the Thompson Nickel Belt and in the surrounding terranes should consider both the older southwest and younger westward ice-flow events when interpreting and following up till geochemical results. Till geochemistry of the <0.063 mm fraction is a useful tool for Ni exploration in the region. Pathfinder elements identified in this study for the <0.063 mm till fraction include Ni, Cu, Pd, Pt, Co, As, Cd, Ag, Sb, Bi, Se, S, and Te. This multi-element signature is similar to those identified in till for other Ni-Cu-PGE deposits. Pd:Pt ratio >3 offers further discrimination of significant till geochemical anomalies. Six anomalous till samples from remote locations outside the Ni Belt contain significantly elevated concentrations of, in various combinations, Pt, Pd, Cu, Cr, Mo, Sb, Bi, and Fe, as well as Au. These anomalies warrant further investigation.
GEOSCAN ID247412