Geology, Tebesjuak Lake, Nunavut / [Authors: T.D. Peterson ... [et al.]]. : M183-1/158-2013E-PDF
"The map area is underpinned by three Archean terranes from west to southeast: the Snow Island Suite of 2.6 Ga granite-rhyolite (AS), the Marjorie Hills assemblage of metasedimentary and granitoid gneiss (AMH), and orthogneiss of the Chesterfield block (unit Agn). The AS-AMH boundary is the Wharton Lake fault system, initially a southwest-dipping detachment. The AMH-Agn boundary is the dextral extensional Tulemalu Fault. Brittle reactivations of these faults localized sub-basins of the Baker Lake Group and hosted coeval intrusions of Martell Syenite (minette / about 1.83 Ga Hudson Granite mix). A Hudson Granite plug intrudes the AMH. Early gabbro/anorthosite (about 1.77 Ga) of the Kivalliq igneous suite was intruded by Nueltin granite, co-magmatic with bimodal Pitz Formation lavas and the about 1.75 Ga, 015° McRae Lake diabase dyke swarm and compositionally related 075° Thelon River dyke swarm. Cu-Pb veins and replacements formed near mafic centres and Au-Ag-bearing quartz veins near felsic centres"--Abstract.
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| Ministère/Organisme | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Titre | Geology, Tebesjuak Lake, Nunavut / [Authors: T.D. Peterson ... [et al.]]. |
| Titre de la série | Canadian geoscience map ; 158 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique |
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| Note(s) | This record only includes the map and the “Map information document” in PDF, the complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/ Includes bibliographical references. Includes abstract in French. |
| Information sur la publication | Ottawa : Natural Resources Canada, 2014. |
| Auteur / Contributeur | Peterson, Tony D. (Tony Douglas) |
| Description | 1 map : col. + 1 map information document ([29] p.). |
| ISBN | 978-1-100-22376-6 |
| Numéro de catalogue |
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| Numéro de catalogue du ministère | 293892 |
| Édition | Preliminary version |
| Données cartographiques | Scale 1:250,000 ; Universal Transverse Mercator, zone 14 (W 100°00’--W 98°00'/N 64°00'--N 63°00’) |
| Descripteurs | Geological maps Lakes Surficial geology |