| Titre | Regional bedrock mapping of northern Baffin Island (Steensby Inlet and Barnes Ice Cap areas), Nunavut: GEM-2 Baffin Project, report of activities 2018 |
| Télécharger | Téléchargements |
| Auteur | Skipton, D R; Saumur, B M; St-Onge, M R |
| Source | Commission géologique du Canada, Dossier public 8484, 2018, 16 pages, https://doi.org/10.4095/312408 (Accès ouvert) |
| Année | 2018 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/312408 |
| Media | en ligne; numérique |
| Formats | pdf |
| Province | Nunavut |
| SNRC | 37E/03; 37E/04; 37E/05; 37E/06; 37E/11; 37E/12; 37E/13; 37E/14; 37F; 37G; 38B/01; 38B/02; 38B/03; 38B/04; 38B/05; 38B/06; 38B/7; 38B/08; 38B/09; 38B/10; 38B/11; 38B/12; 38B/15; 38B/16 |
| Lat/Long OENS | -80.0000 -74.0000 72.8333 70.0000 |
| Sujets | travaux de prospection; géologie du substratum rocheux; géologie du socle; lithologie; roches sédimentaires; grès; dolomies; schistes; calcaires; silstones; formations ferrifères; roches ignées; roches
intrusives; diabases; gabbros; monzogranites; granodiorites; leucogabbros; diorites; monzonites; roches felsiques; roches volcaniques; roches métamorphiques; gneiss; orthogneiss; roches sédimentaires métamorphosées; psammites; pélites; Archéen;
compilation; établissement de modèles; intrusions; plutons; gisements minéraux; minéralisation; fer; Bassin de Borden ; Groupe de Mary River ; Groupe de Piling ; système d'information géographique; base de données; géologie régional; géologie
économique; Phanérozoïque; Mésozoïque; Crétacé; Paléozoïque; Précambrien; Protérozoïque |
| Illustrations | location maps; geoscientific sketch maps; photographs |
| Programme | Mary River nord de Baffin, GEM2 : La géocartographie de l'énergie et des minéraux |
| Programme | Programme du plateau continental polaire |
| Diffusé | 2018 10 31 |
| Résumé | (Sommaire disponible en anglais seulement)
This is a progress report on the fieldwork, map compilation and geoscience research undertaken in the GEM-2 North Baffin bedrock mapping activity
during late 2016 to 2018, as part of the GEM-2 Baffin Project (Fig. 1).
Geological maps inform industry, government, and community stakeholders of potential economic resources. During the past two decades, the Precambrian and Phanerozoic bedrock
geology has been mapped in extensive areas of Nunavut. Updated regional bedrock map coverage for Baffin Island south of latitude 70°N was completed in 2016 (St-Onge et al., 2016). The activity described herein represents the first steps towards an
updated geological framework of Baffin Island north of 70°N, with the goal of producing maps at a scale and resolution commensurate with those produced for the southern portion of the island.
Improved geological maps will help determine the
potential for diamonds, base metals and carving stone in northern Baffin Island. In 2017, fieldwork was conducted in NTS sheets 37G and 38B, including the area around Pond Inlet and part of Sirmilik National Park (Fig. 2). The second and final phase
of bedrock mapping for the GEM-2 North Baffin project was completed in the summer of 2018 in the area bordering Steensby Inlet and the Barnes Ice Cap (NTS sheet 37F and parts of sheets 37E and 37G; Fig. 2), and included the world-class Mary River
iron mine operated by Baffinland Iron Mines Corporation.
Results of 2017 fieldwork and research are presented in previous reports (Skipton et al., 2017; Saumur et al., 2017; Bros and Johnston, 2017). Three new bedrock geology maps stemming from
the 2017 mapping campaign were published in 2018, and are publically available online (Saumur et al., 2018a, b; Skipton et al., 2018). Twelve rock samples representing the main map units have been dated using the U/Pb Sensitive High Resolution Ion
Microprobe (SHRIMP) method, and research studies are ongoing into the tectono-metamorphic evolution of the area and implications for economic mineralization. The new maps and preliminary research results were presented to geoscientists and community
stakeholders at the Nunavut Mining Symposium in April 2018 (Saumur et al., 2018c; Bros et al., 2018). |
| Résumé | (Résumé en langage clair et simple, non publié)
Ce rapport présente une mise à jour du travail de terrain et de la compilation de cartes entrepris dans le cadre de l'activité de cartographie du
substratum rocheux de GEM-2 Baffin Nord en 2018. Malgré le fait que la zone d'étude comprend le gisement de fer de haut tonnage et grade Mary River, la géologie des roches qui contiennent le gisement (Groupe Mary River) et des roches granitiques
environnantes demeure néanmoins mal comprise. Des cartes géologiques améliorées pour cette région contribueront à notre connaissance de l'évolution géologique et du potentiel minéral de l'Arctique canadien. |
| GEOSCAN ID | 312408 |
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