Geology, Circle Lake, Baffin Island, Nunavut / [by] M. Sanborn-Barrie and M. Young. : M183-1/5-2011E-PDF
"Cumberland Peninsula, eastern Baffin Island, is an under-explored, frontier region with significant diamond, base- and precious-metal potential. Archean (2.97-2.77 Ga) foliated to gneissic tonalitic plutonic rocks with enclaves of >2.77 Ga semipelite, ca. 2.88 Ga gabbro and rare ca. 2.92 Ga metavolcanic rocks form a structural basement, exposed in the south and north. Metasedimentary cover rocks of the Paleoproterozoic Hoare Bay group, exposed from the central to the northeast part of the peninsula, are in tectonic contact with the basement gneisses. The cover sequence includes widespread semipelite-psammite with minor quartzite, marble, silicate- and oxide-faciesiron-formation, chert and graphitic-pyritiferous shale, and two geochemically-distinct strands of ultramafic-mafic metavolcanic rocks of pyroclastic origin. Basement and cover rocks are cut by 1.9-1.88 Ga charnockite, biotite-garnet granodiorite and lesser quartz diorite of the Qikiqtarjuaq plutonic suite. Major structures and medium to high-grade metamorphic assemblages are attributed to polyphase tectonometamorphism between ca. 1.90-1.84 Ga"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.571133&sl=1
| Ministère/Organisme | Canada. Natural Resources Canada, issuing body. Geological Survey of Canada, issuing body. |
|---|---|
| Titre | Geology, Circle Lake, Baffin Island, Nunavut / [by] M. Sanborn-Barrie and M. Young. |
| Titre de la série | Canadian geoscience map ; No. 5 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes a legend. Includes bibliographical references. Includes abstract in French. |
| Information sur la publication | Ottawa : Natural Resources Canada, c2013. |
| Auteur / Contributeur | Sanborn-Barrie, Mary, 1960- author. Young, M., contributor. |
| Description | 1 map : col. |
| ISBN | 978-1-100-19051-8 |
| Numéro de catalogue |
|
| Numéro de catalogue du ministère | 288929 |
| Édition | Preliminary version |
| Données cartographiques | Scale 1:100,000 |
| Descripteurs | Geological maps Geomorphology Surficial geology |
Demander des formats alternatifs
Pour demander une publication dans un format alternatif, remplissez le formulaire électronique des publications du gouvernement du Canada. Utilisez le champ du formulaire «question ou commentaire» pour spécifier la publication demandée.- Date de modification :