Predictive surficial geology, Wecho River, Northwest Territories, NTS 85-O / Authors: P. D. Morse ... [et al.]. : M183-1/277-2016E-PDF
"The glaciated landscape exhibits ice flow features associated with ice advance such as drumlinoids, crag-and-tails and fluted bedrock, which together with striations, record a southwestward ice flow during the last glaciation. Glacially scoured bedrock dominates the area. Discontinuous till veneer is generally restricted to the northeastern map area. Glaciofluvial sediments, including eskers and kames generally trend southwestward. Many eskers consist of a series of short segments. During deglaciation about 11–10 ka BP, fine-grained glaciolacustrine sediments, associated with glacial Lake McConnell, were deposited in many western and southern topographic lows, up to 240 m or possibly higher. Related glaciolacustrine deltas and beaches, marking the decreasing elevation of the glacial lake over time due to isostatic rebound, occur at 270–295 m, although isolated deltas have also been observed at 310, 320, 330 m and as high as 350 m in the northeast. Postglacial eolian sediments exhibit dunes recording both north-northwestward and south-southeastward paleowind directions"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.812133&sl=1
| Ministère/Organisme | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Titre | Predictive surficial geology, Wecho River, Northwest Territories, NTS 85-O / Authors: P. D. Morse ... [et al.]. |
| Titre de la série | Canadian geoscience map ; 277 |
| 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, 2016. |
| Auteur / Contributeur | Morse, Peter Douglass, 1975- |
| Description | 1 map : col. + 1 map information document ([6] p.). |
| ISBN | 978-0-660-04729-4 |
| Numéro de catalogue |
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| Numéro de catalogue du ministère | 298686 |
| Édition | Preliminary version |
| Données cartographiques | Scale 1:125 000 ; Universal Transverse Mercator, zone 11 (W 116°00’--W 114°00'/N 64°00'--N 63°00’) |
| Descripteurs | Geological maps Geomorphology Surficial geology |
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