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TitleIndicator mineral signatures of the Sisson W-Mo deposit, New Brunswick: part 2 till
AuthorMcClenaghan, M B; Parkhill, M A; Seaman, A A; Pronk, A G; Averill, S A; Rice, J M; Pyne, M
SourceGeological Survey of Canada, Open File 7467, 2014, 31 pages,
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; glacial deposits; tills; till analyses; till geochemistry; till deposits; bedrock geology; indicator elements; ice transport directions; ice flow; dispersal patterns; scheelite; wolframite; molybdenum; chalcopyrite; pyrite; arsenopyrite; bismuth; sphalerite; galena; pyrrhotite; mineralization; trace element analyses; trace element distribution; trace element geochemistry; Sisson W-Mo deposit; indicator minerals; Cenozoic; Quaternary; Carboniferous; Devonian; Silurian; Ordovician; Cambrian; Paleozoic
Illustrationslocation maps; tables; photomicrographs; photographs
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramIntrusion/Porphyry Ore Systems, Targeted Geoscience Initiative (TGI-4)
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
Released2014 03 02
AbstractAn indicator mineral case study was carried out around the Sisson W-Mo deposit, one of the largest W deposits in the world. The work was carried out 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 indicator mineral study is the first case study around a major W-Mo deposit in glaciated terrain. It is also the first indicator mineral case study in any terrain to identify a broad range of indicator minerals for this deposit type, in addition to the commonly known minerals scheelite and molybdenite.
Indicator minerals for the Sisson W-Mo deposit include the primary ore minerals scheelite, wolframite, and molybdenite, as well as secondary ore minerals chalcopyrite, joseite, native Bi, bismutite, bismuthinite, galena, sphalerite, arsenopyrite, pyrrhotite, and pyrite. Indicator minerals in 10 kg till samples clearly define glacial dispersal at least 10 km down-ice (southeast) of the deposit. The presence of coarse (0.5-2.0 mm) indicator minerals indicates proximity (<1 km) to the source. Thus, the use of heavy mineral sampling in regional exploration programs for W-Mo deposits is recommended. A 2 km spacing of surface till samples is likely sufficiently dense to detect the glacial dispersal train from the Sisson deposit, as well as its polymetallic nature.
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 contains indicator mineral data and interpretations of those data for till samples collected around the Sisson tungsten-molybdenum deposit in central New Brunswick.