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TitleTill geochemistry of the Nechako River map area (NTS 93F), central British Columbia
AuthorPlouffe, A; Levson, V M; Mate, D J
SourceGeological Survey of Canada, Open File 4166, 2001, 66 pages (2 sheets); 1 CD-ROM, (Open Access)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
PublisherNatural Resources Canada
Documentopen file
MapsPublication contains 19 maps
Map Info.geological, mineral occurrences, 1:550,000
Map Info.surficial geology, regional ice flow, 1:550,000
Map Info.location, arsenic concentrations, 1:550,000
Map Info.location, copper concentrations, 1:550,000
Map Info.location, barium concentrations, 1:550,000
Map Info.location, gold concentrations, 1:550,000
Map Info.location, mercury concentrations, 1:550,000
Map Info.location, arsenic concentrations, 1:550,000
Map Info.location, lead concentrations, 1:550,000
Map Info.location, aluminum concentrations, 1:550,000
Map Info.location, sodium concentrations, 1:550,000
Map Info.location, molybdenum concentrations, 1:550,000
Map Info.location, magnesium concentrations, 1:550,000
Map Info.location, copper magnesium ratio, 1:550,000
Map Info.location, zinc concentrations, 1:550,000
Mediapaper; CD-ROM; digital; on-line
RelatedThis publication is related to Spirito, W A; McClenaghan, M B; Plouffe, A; McMartin, I; Campbell, J E; Paulen, R C; Garrett, R G; Hall, G E M; (2011). Till sampling and analytical protocols for GEM Projects: from field to archive, Geological Survey of Canada, Open File 6850
File formatpdf (Adobe Acrobat Reader); xls (Excel); JPEG2000
ProvinceBritish Columbia
AreaNechako River; 3
Lat/Long WENS-126.0000 -124.0000 54.0000 53.0000
Subjects4; geochemistry; surficial geology/geomorphology; till analyses; geochemical analyses; till geochemistry; tills; clays; silts; gold; arsenic; barium; mercury; antimony; base metals; copper; lead; zinc; molybdenum; mineral occurrences; bedrock geology; grain size analyses; ice flow; glacial history; lithophile deposits; 1; Quaternary
ProgramNechako NATMAP Project
Released2001 12 01
AbstractFollowing the Canada-British Columbia Agreement on Mineral Development (1991-1995) and the Nechako NATMAP Project (1995-2000), the British Columbia Geological Survey Branch and the Geological Survey of Canada have completed a series of regional and reconnaissance till geochemistry surveys within the Nechako River map area (NTS 93F). This report presents a compilation of the geochemical analyses conducted on the clay- (<0.002 mm) and silt and clay-sized (<0.063 mm or 230 mesh) fractions of till. Results for gold and pathfinder elements (arsenic, barium, mercury, antimony), base metals (copper, lead, zinc), molybdenum, and three lithophile elements (aluminium, magnesium, sodium) are presented on colored geochemical maps and discussed in the text. Interpretation of the till geochemistry data takes into account, bedrock geology, known mineral occurrences, ice-flow history, analytical and digestion methods, and grain size of the analyte. Several sites with anomalous metal concentrations in till and not located near known mineralization are indicated. These reveal the high potential for new mineral discoveries within the Nechako River map area.