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TitreHudson Bay and Foxe Basins project: an update on a Geo-mapping for Energy and Minerals program (GEM) initiative, northeast Manitoba (part of NTS 54)
AuteurNicolas, M P B; Lavoie, D
SourceManitoba Industry, Trade & Mines, Manitoba Geological Survey, Report of Activities 2010, 2010 p. 186-192
Séries alt.Secteur des sciences de la Terre, Contribution externe 20100190
Documentpublication en série
SNRC54A; 54B; 54C; 54D; 54E; 54F; 54G; 54K; 54L
Lat/Long OENS-96.0000 -89.0000 59.0000 56.0000
Sujetshydrocarbures; capacité de production d'hydrocarbures; roches sédimentaires; bassins; bassins sédimentaires; corrélations stratigraphiques; Bassin d'Hudson Bay ; Bassin de Foxe ; combustibles fossiles; stratigraphie; Paléozoïque; Dévonien; Silurien; Ordovicien
Illustrationslocation maps; tables; stratigraphic columns; photographs
ProgrammeBassins sédimentaires d'Hudson / Foxe Bay, GEM : La géocartographie de l'énergie et des minéraux
Résumé(disponible en anglais seulement)
The Hudson Bay and Foxe Basins Project is in its second year. It is part of the Geological Survey of Canada Geo-mapping for Energy and Minerals (GEM) program, whose energy side aims to study the hydrocarbon potential of these Phanerozoic sedimentary basins. In Manitoba, the Hudson Bay Basin is represented by the Paleozoic carbonate succession of the Hudson Bay Lowland (HBL) in the northeastern corner of the province. Project activities this year included core logging, a core workshop and a field trip, together with various laboratory analyses. The purpose of examining core from the HBL is to better understand the stratigraphy of the basin, and search for potential source rocks and evidence of a hydrocarbon system. The field trip was essential to examine, firsthand, cross-basin correlations and stratigraphic relationships. Preliminary results from the core logging indicate a more complex stratigraphy than expected. Stratigraphic correlations are difficult because there is evidence of complex relationships, including facies changes and missing formations, and questions arise when outcrop descriptions (particularly type sections) do not match core descriptions for the same unit. Biostratigraphy is used to help decipher some stratigraphic issues. Evidence for a hydrocarbon system, such as bituminous residues preserved along open fractures, was found in several of the Manitoba Hydro Conawapa cores. The presence of the residues indicates that hydrocarbons have passed through this part of the sedimentary succession, but it is uncertain if the hydrocarbon system is local or basin wide. Rock EvalTM analysis of dark shaly material, which represents potential hydrocarbon source rock, is being conducted on these samples to help address these questions.