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TitreQualitative petroleum resource assessment of the Labrador Margin
TéléchargerTéléchargements
AuteurCarey, J S; McCartney, T; Hanna, M C; Lister, C J; Ferguson, R; Kung, L E
SourceCommission géologique du Canada, Dossier public 8535, 2019, 104 pages, https://doi.org/10.4095/314721 (Accès ouvert)
Année2019
ÉditeurRessources naturelles Canada
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/314721
Mediaen ligne; numérique
Liensreadme
Formatspdf (Adobe® Reader®); rtf; docx (Microsoft® Word®); gdb (ESRI® ArcGIS® v.10.x); shp (ESRI® ArcGIS® v.10.x); xml (ESRI® ArcGIS® v.10.x); mxd (ESRI® ArcGIS® v.10.x)
ProvinceTerre-Neuve-et-Labrador; Région extracotière du nord; Région extracotière de l'est
SNRC3; 13H; 13I; 13J; 13N; 13O; 13P; 14C; 14F; 14K; 14L; 14M; 14N; 15C; 15D; 15E; 15F; 25A; 25H
Lat/Long OENS -65.0000 -49.0000 62.0000 52.5000
Sujetsmarges continentales; plate-forme continentale; talus continental; régions extracôtières; ressources pétrolières; capacité de production d'hydrocarbures; pétrole; gaz; hydrate; méthane; établissement de modèles; analyses thermiques; production pétrolière; production d'hydrocarbure; roches mères; roches reservoirs; migration des hydrocarbures; porosité; perméabilité; potentiel minier; gisements minéraux; gîtes minéralogiques; métaux; nickel; cobalt; cuivre; uranium; or; chromite; charbon; zinc; diamant; fer; gypse; lithium; plomb; mines; ressources géothermiques; potentiel géothermique; interprétations géophysiques; interpretations sismiques; levés de reflexion sismiques; diagraphie des sondages; bassins sédimentaires; antécédents tectoniques; cadre tectonique; décrochement horizontal; expansion océanique; déformation; intrusions; plutons; historique de l'enfouissement; antecedents thermiques; interpretations structurelles; épaisseur de la croûte; modèles sédimentaires; géochimie organique; pyrolyse; bitume; maturation thermique; flux thermique; puits; températures géothermiques; analyses de faciès; bathymétrie; géologie du substratum rocheux; géologie du socle; lithologie; roches sédimentaires; schistes; grès; mudstones; roches clastiques; conglomérats; silstones; calcaires; dolomies; dolomites; roches ignées; roches intrusives; roches volcaniques; caractéristiques structurales; pieces; zones de failles; failles; failles normales; fosses d'effondrement; zones de fracture; zones de cisaillement; biostratigraphie; réflectance de la vitrinite; pétrophysique; Archéen; Bassin d'Hopedale ; Bassin de Saglek ; Formation de Bjarni ; Formation de Gudrid ; Arche d'Okak ; Zone de Cartwright Fracture ; Arche de Cartwright ; Zone de cisaillement de Kanairiktok ; Province de Makkovik ; Province de Nain ; Formation de Markland ; Formation de Cartwright ; Formation de Kenamu ; Formation de Mokami ; Formation de Saglek ; hydrates de gaz; éléments du groupe de platine; combustibles fossiles; géologie économique; géologie marine; tectonique; stratigraphie; géologie structurale; géophysique; géochimie; paléontologie; Phanérozoïque; Cénozoïque; Tertiaire; Mésozoïque; Crétacé; Paléozoïque; Dévonien; Silurien; Ordovicien; Précambrien; Protérozoïque
Illustrationslocation maps; geoscientific sketch maps; geochronological charts; schematic cross-sections; tables; cross-sections; models; profiles; stratigraphic columns; plots
ProgrammeAnalyse des bassins frontaliers, Les géosciences pour les nouvelles sources d'énergie
Diffusé2019 07 08
Résumé(Sommaire disponible en anglais seulement)
Natural Resources Canada (NRCan) conducted a qualitative petroleum resource assessment for the Labrador continental margin (Figure 1) in order to inform any future decisions related to marine spatial planning including marine conservation. Funding for this study came from the Marine Conservation Targets (MCT) initiative, which provided targeted funding to Environment and Climate Change Canada (represented by the Parks Canada Agency), Fisheries and Oceans Canada (DFO), and Natural Resources Canada (NRCan) as part of the Government of Canada's commitment to conserve 10% of Canada's marine and coastal waters by 2020.
The study area encompasses approximately 425,000 km2 northeast of Labrador between 53?N and 61?N, and from the shoreline to the 200 nautical mile limit, where water depths can exceed 3000 m (Figure 2). Information compiled, produced and reviewed for this report is included in appendices including the interpretive geologic framework (Appendix A), thermal modeling and petroleum generation (Appendix B), the petroleum system analysis by play (Appendix C), an assessment of the unconventional petroleum potential (Appendix D), mineral potential (Appendix E), list of all reviewed documents (Appendix F), and a glossary of terms (Appendix G).
This qualitative assessment of the conventional petroleum potential of the Labrador Sea builds on previous petroleum potential studies of the Labrador Margin (e.g. Sheppard and Hawkins, 1980), and incorporates new insights gained from recent scientific work (e.g. Jauer and Budkewitsch, 2010; Dickie et al., 2011; Keen et al., 2018a, b) and examination of seismic survey data acquired between 1975 and 2016 (Figure 3). The present study summarizes relative petroleum resource potential of the study area, and provides the scientific foundation for any subsequent quantitative assessment of the potential. The petroleum assessment includes evaluations of petroleum plays in two sedimentary basins: the Hopedale Basin and Saglek Basin (Figure 4), as well as their corresponding deepwater systems. Data coverage and principal geological features and basin architecture are shown in Figures 2, 3 and 4, and discussed in Appendices A and B.
The interpretation of conventional petroleum resource potential, visually represented by a qualitative potential map (Figure 1), indicates the highest potential is located in areas of the continental shelf where early Cretaceous depocentres are found, with moderate to high potential in parts of the continental slope with thick sediments.
A secondary objective of the study was to assess the potential for unconventional hydrocarbons such as gas hydrates, coal-bed methane, shale oil and shale gas (Figure 5). The unconventional energy potential is viewed as moderate based solely on review of the literature with no additional research or analysis.
A tertiary objective of the study was to identify areas with potential mineral resources through literature review (Appendix E) and regional geologic mapping. Mineral resources identified in coastal Labrador include nickel, cobalt, copper and uranium. Figure 6 provides information on mineral occurrences and mines near the study area. Viability of offshore mineral resource extraction would first require a regulatory framework that allows offshore mineral mining in Canada.
Résumé(Résumé en langage clair et simple, non publié)
Ce dossier public résume les résultats d'une analyse qualitative du potentiel en ressources minérales et pétrolières de la plate-forme et du talus au large du Labrador. La Commission géologique du Canada (CGC) de Ressources naturelles Canada (RNCan) a réalisé cette analyse en appui à l'engagement de RNCan à évaluer les zones extracôtières dont la protection est proposée par Pêches et Océans Canada ou Parcs Canada. Une carte de prospectivité relative de la marge continentale montre l'ensemble de toutes les zones possiblement pétrolifères, repérées à l'aide de la méthodologie décrite dans le dossier public 8404 de la CGC (Lister et coll., 2018).
GEOSCAN ID314721