| Titre | Mineral resource assessment of the Pacific Margin sponge reef areas of interest |
| Télécharger | Téléchargements |
| Auteur | Barrie, J V |
| Source | Commission géologique du Canada, Dossier public 6915, 2012, 18 pages, https://doi.org/10.4095/291498 (Accès ouvert) |
| Image |  |
| Année | 2012 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/291498 |
| Media | en ligne; numérique |
| Référence reliée | Cette publication est reliée Hannigan, P K;
Dietrich, J R; (2012). Petroleum resource potential of the Hecate Strait / Queen Charlotte Sound Glass Sponge Reef
areas of interest, Pacific Margin of Canada, Commission géologique du Canada, Dossier public 6860 |
| Formats | pdf |
| Province | Région extracotière de l'ouest |
| Lat/Long OENS | -131.5000 -128.0000 53.5000 51.0000 |
| Sujets | ressources pétrolières; exploration pétrolière; capacité de production d'hydrocarbures; roches mères; bassins sédimentaires; pétrole; gaz; analyses du bassin; récifs; dépôts récifaux; changements du
niveau de la mer; variations du niveau de la mer; océanographie; organismes marins; milieux marins; sédiments marins; aggrégats; carbonates; Bassin d'Hecate ; Bassin de Queen Charlotte ; Éponges; combustibles fossiles; paléontologie; géologie marine;
géologie économique; Cénozoïque; Quaternaire |
| Illustrations | location maps; photographs; tables |
| Programme | Environnement
et ressources minérales et énergétiques (ERME) |
| Diffusé | 2012 08 17 (13:00) |
| Résumé | (disponible en anglais seulement)
Glass sponge reefs (Hexactinellida, Hexactinosida) off the Pacific Margin of Canada are both geologically and ecologically unique and represent the only global
occurrence. In order to provide protection to these unique living cold-water reefs, the Department of Fisheries and Oceans under the Oceans Act have made the four large reefs within the Pacific North Coast Integrated Management Area (PNCIMA)
designates for protection as Marine Protected Areas (MPA). The federal government's process for evaluation of a MPA of Interest requires an assessment of the non-renewable resource potential, including marine minerals. Based on the limited knowledge
of the offshore British Columbia surficial mineral potential, two settings that may contain mineral placers of gold and titanium include drowned beach and reworked shelf deposits at water depths of 150 m to the modern beach. In addition, extensive
areas of construction aggregate and calcium carbonate occur on the shelf. The deep water sponge reefs within the Areas of Interest occur in depths below 150 m within glacial sediments and, therefore, outside the potential setting for mineral placers
or industrial minerals. Consequently, the enactment of the sponge reef Marine Protected Areas will not include any surficial mineral deposits of economic potential. |
| GEOSCAN ID | 291498 |
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