Reconnaissance surficial geology, Beaverhill Lake, Northwest Territories, NTS 75-I / [by] R. Stea and D.E. Kerr. : M183-1/141-2014E-PDF
"Reconnaissance mapping, through aerial photograph interpretation and limited field and legacy data in the Beaverhill Lake map area, provides an understanding of surficial sediments and glacial history. The last major ice flow was westward, indicated by glacially fluted landforms, although local minor southwestward and northwestward flows are recorded. An earlier west-southwest flow is inferred from streamlined features and erosional troughs observed locally. Major glaciofluvial corridors indicate a westward meltwater flow, debauching locally into glacial lakes in the central and northeast regions, representing various phases of glacial Lake Thelon. Glaciolacustrine regression beaches occur around Beaverhill Lake and elsewhere, at and below 340 m a.s.l. The extensive muskeg deposits in the north central regions are remnants of this glacial lake, and occur at elevations up to 365 m or possibly higher. The lake sediments are mapped as organics, presumably underlain by glaciolacustrine sediments, and glaciolacustrine veneer over till, reflecting the uncertainty of glaciolacustrine sediment thickness and extent"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.579768&sl=1
| Ministère/Organisme | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Titre | Reconnaissance surficial geology, Beaverhill Lake, Northwest Territories, NTS 75-I / [by] R. Stea and D.E. Kerr. |
| Titre de la série | Canadian geoscience map ; 141 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Édition précédente | Reconnaissance surficial geology, Beaverhill Lake, Northwest Territories, NTS 75-I |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographical references. Includes abstract in French. |
| Information sur la publication | Ottawa : Natural Resources Canada, c2014. |
| Auteur / Contributeur | Stea, R. R. (Ralph R.) Kerr, Daniel Ernest, 1961- |
| Description | 1 map : col. |
| ISBN | 978-1-100-23739-8 |
| Numéro de catalogue |
|
| Numéro de catalogue du ministère | 293923 |
| Édition | Preliminary 2nd ed. |
| Données cartographiques | Scale: 1:125,000 |
| Descripteurs | Geological maps Lakes 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 :