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.

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Publication information
Department/Agency Canada. Natural Resources Canada.
Geological Survey of Canada.
Title Predictive surficial geology, Wecho River, Northwest Territories, NTS 85-O / Authors: P. D. Morse ... [et al.].
Series title Canadian geoscience map ; 277
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
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.
Publishing information Ottawa : Natural Resources Canada, 2016.
Author / Contributor Morse, Peter Douglass, 1975-
Description 1 map : col. + 1 map information document ([6] p.).
ISBN 978-0-660-04729-4
Catalogue number
  • M183-1/277-2016E-PDF
Departmental catalogue number 298686
Edition Preliminary version
Cartographic data Scale 1:125 000 ; Universal Transverse Mercator, zone 11 (W 116°00’--W 114°00'/N 64°00'--N 63°00’)
Subject terms Geological maps
Geomorphology
Surficial geology
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