00000nam 2200000zi 4500 9.932604 CaOODSP 20251031142449 m o d f cr mn||||||||| 240117t20242024oncab ob f000 0 eng d 9780660696737 CaOODSP eng rda CaOODSP n-cn-nu y2y2 M183-2/9159E-PDF Brouard, Etienne, author. Report of 2023 field activities for the GEM-GeoNorth West-central Keewatin Glacial Dynamics activity, Nunavut / E. Brouard, J.E. Campbell, P.-M. Godbout, N.-M. Renaud, I. McMartin, M. Roy, S.E. Kelley, and C. Crowell. [Ottawa] : Geological Survey of Canada, 2024. ©2024 1 online resource (34 pages) : colour illustrations, colour maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Open file, 2816-7155 ; 9159 Includes bibliographical references (pages 32-34). "The landscapes we see today in northern Canada are the results of the dynamics of former continental glaciations of the Quaternary. As the environment evolved with the cyclic growth and decay of ice sheets, it is paramount to understand the history of these glacial cycles to provide a robust framework for geological and environmental studies. Much is known about these glaciations in southern Canada, but in northern Canada, extensive regions remain poorly studied because of their remoteness and hence knowledge of pastglaciations there remains somewhat limited. West-central Keewatin, for example, critically lacks field data on glacial geology in many sectors. Hence, as part of the GEM-GeoNorth West-central Keewatin Glacial Activity, field investigations on the glacial geology around Lake Dubawnt in mainland Nunavut were undertaken in 2023. Here, we detail the field methodology used to compile geospatial information and measurements of ice-flow indicators, and to collect till, bedrock, boulder and sediment samples for terrestrial cosmogenic nuclide and luminescence dating. A total of 111 ground observation sites were visited, including the collection of 108 ice-flow measurements and 93 samples. Preliminary interpretations of the relative chronology and spatial relationship of iceflow indicators suggest that several distinct major ice-flow phases have impacted the region. These interpretations will be complemented with the upcoming results from till compositional data and geochronological analyses. The new field datasets will be used along with remote geomorphological mapping to improve the regional glacial history and enhance success of land-resource based decisions in this part of northern Canada"--Abstract, page 1. Geological surveys Nunavut. Glacial landforms Nunavut. Drift Sampling Nunavut. Rocks Sampling Nunavut. Sediments (Geology) Sampling Nunavut. Études géologiques Nunavut. Géomorphologie glaciaire Nunavut. Drift (Glaciologie) Échantillonnage Nunavut. Roches Échantillonnage Nunavut. Sédiments (Géologie) Échantillonnage Nunavut. Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 9159. (CaOODSP)9.506878 PDF 10.79 MB https://publications.gc.ca/collections/collection_2024/rncan-nrcan/m183-2/M183-2-9159-eng.pdf (report) HTML N/A https://doi.org/10.4095/332531 (complete dataset)