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TitleTill geochemical signatures of the Sisson W-Mo deposit, New Brunswick
AuthorMcClenaghan, M B; Parkhill, M A; Seaman, A A; Pronk, A G; Pyne, M; Rice, J M; Hashmi, S
SourceGeological Survey of Canada, Open File 7430, 2013, 53 pages, (Open Access)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf; rtf; xls
ProvinceNew Brunswick
NTS21J/02NW; 21J/03NE; 21J/06SE; 21J/07SW
AreaSisson Brook
Lat/Long WENS-67.1000 -66.9167 46.4167 46.2167
Subjectseconomic geology; surficial geology/geomorphology; geochemistry; glacial deposits; tills; till deposits; till samples; till geochemistry; indicator elements; drift prospecting; dispersal patterns; sediment dispersal; mineralization; tungsten; molybdenum; tin; copper; bismuth; arsenic; zinc; cadmium; silver; lead; indium; tellurium; mineral occurrences; mineral deposits; trace element analyses; trace element distribution; trace element geochemistry; Sisson W-Mo deposit; indicator minerals; Quaternary; Cenozoic
Illustrationslocation maps; photographs; tables; ternary diagrams; plots
ProgramTargeted Geoscience Initiative (TGI-4), Intrusion/Porphyry Ore Systems
Released2013 08 27 (13:00)
AbstractA till composition study was carried out around the Sisson W-Mo deposit, one of the largest W deposits in the world, as part of the Geological Survey of Canada’s (GSC) Targeted Geoscience Initiative 4 (TGI-4), a collaborative federal geoscience program with a mandate to provide industry with the next generation of geoscience knowledge and innovative techniques that will result in more effective targeting of buried mineral deposits. This till geochemical study is one of the first detailed studies around a major W deposit in glaciated terrain. The <0.063 mm fraction of till clearly defines glacial dispersal at least 14 km down-ice of the deposit and this size fraction of till is recommended for W-Mo exploration in the region. Indicator elements for this type of W-Mo deposit include the ore elements W and Mo, and pathfinder elements Sn, Bi, Cu, Zn, Pb, Ag, In, As, Cd, Zn, and Te. A total digestion method, such as the one used in this study (lithium meta/tetraborare fusion/ICP-MS), is required to report the total concentration of W and Sn in till and aqua regia is suitable for determining the other pathfinder elements. Glacial dispersal of W and Mo from the Sisson deposit is detectable at a regional scale at least 14 km down-ice (southeast) using surface till sampling. A 2 km till sample spacing would be sufficient to detect the W dispersal train from a W-Mo deposit of this size.
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration. This open file reports till geochemical data for the <0.063 mm fraction of till samples collected around, and down ice of, the Sisson W-Mo deposit in central New Brunswick, as part of the TGI-4 indicator mineral case study.