00000nem 2200000za 4500 9.816892 CaOODSP 20230131161136 m go c f cr ||||||||||| 160504s2016 onc bd a fo 0 eng d 978-0-660-05387-5 CaOODSP eng eng fre n-cn-nt M183-1/290-2016E-PDF Kerr, Daniel Ernest, 1961- Reconnaissance surficial geology, Rae, Northwest Territories, NTS 85-K [electronic resource] / [authors: D. E. Kerr, P. D. Morse and S. A. Wolfe]. Prelim. Scale 1:125 000 ; Universal Transverse Mercator, zone 11 (W 118°00’--W 116°00'/N 63°00'--N 62°00’) Ottawa : Natural Resources Canada, 2016. 1 map : col. + Map information document ([6] p.). Canadian geoscience map ; 290 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. "Following deglaciation about 11–10 ka BP, fine-grained glaciolacustrine sediments, associated with glacial Lake McConnell, were deposited in most of the map area, up to 290 m above sea level (a.s.l.). These sediments overlie buried ice-flow features such as drumlinoids, drumlins, crag-and-tails and fluted bedrock, recording a southwestward ice flow during the last glaciation. A broad discontinuous band of till extends SE-NW in the central part of the map area. Glaciofluvial sediments and some bedrock ridges were reworked into glaciolacustrine beaches throughout the area. These beaches, present at an elevation up to 300–310 m a.s.l., mark the decreasing elevation of the glacial lake over time due to isostatic rebound. In the southwest, only the Horn Plateau, consisting of undifferentiated glacial deposits with colluvium on its slopes, remained above the limit of glaciolacustrine inundation. Minor glaciolacustrine iceberg scours in the southeast and postglacial eolian dunes in the south-central regions trend SE-NW. The fine-grained glaciolacustrine sediments may be overlain by organics and exhibit thermokarst activity"--Abstract. Includes abstract in French. gccst Geological maps gccst Geomorphology gccst Surficial geology Morse, Peter Douglass, 1975- Wolfe, Stephen Andrew, 1963- Canada. Natural Resources Canada. Geological Survey of Canada. Canadian geoscience map ; 290. (CaOODSP)9.506260 PDF 27.28 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-1-290-2016-1-eng.pdf Map PDF 606 KB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M183-1-290-2016-eng.pdf Map information document HTML N/A https://doi.org/10.4095/298838 GEOSCAN DOI 298838